| Berkeley 104 |
Only straggler candidates inside a radius of 2’ around the centre of coordinates have been considered. |
| Berkeley 12 |
Only straggler candidates inside a radius of 2’ around the centre of coordinates have been considered. |
| Berkeley 14 |
Only straggler candidates inside a radius of 3’ around the centre of coordinates have been considered. The red limit of the blue straggler area is (B-V)=0.74. |
| Berkeley 16 |
The cluster parameters are from (1999MNRAS.304..883P). |
| Berkeley 18 |
Only straggler candidates inside a radius of 3’ around the centre of coordinates have been considered. The red limit of the blue straggler area is (B-V)=0.88. |
| Berkeley 19 |
The cleaned colour-magnitude diagram in (1980AJ…..85..700C) was examined. |
| Berkeley 20 |
In the VI CCD photometry (1994AJ….107.1806M), 16 straggler candidates are identified inside a radius of 1.5’ around the cluster centre: they show the same central concentration as the red giants, like in M67. |
| Berkeley 21 |
The red limit of the blue straggler area is (B-V)=0.97. |
| Berkeley 22 |
The red limit of the blue straggler area is (B-V)=1.06. In (1994A&AS..108..151K) it is remarked that most of the straggler candidates are near the cluster centre; however, if the apparent diameter given in (1987, Lund Catalogue of Open Cluster Data), which is the one listed in Table 1, is taken as correct, the stragglers do not appear so central. It is possible that this diameter is still too small. |
| Berkeley 23 |
Only straggler candidates inside a radius of 4’ around the centre of coordinates have been considered. The red limit of the blue straggler area is (B-V)=0.53. |
| Berkeley 30 |
Only straggler candidates inside a radius of 3’ around the centre of coordinates have been considered. |
| Berkeley 31 |
The red limit of the blue straggler area is (B-V)=0.50. |
| Berkeley 32 |
The red limit of the blue straggler area is (B-V)=0.55. Stars 30, 31, and 40 are cited as blue stragglers in (1991AcA….41..167K). Adopted cluster centre: star 16 of (1991AcA….41..167K). |
| Berkeley 33 |
Only straggler candidates inside a radius of 3’ around the centre of coordinates have been considered. |
| Berkeley 39 |
Only straggler candidates inside a radius of 6’ around the centre of coordinates have been considered. The red limit of the blue straggler area is (B-V)=0.64. Four probable members, short- period, eclipsing binaries are identified among the stragglers by (1993MNRAS.262…49K). Another Delta Scuti straggler is found by (1999AcA….49..551M). |
| Berkeley 46 |
The red limit of the straggler area is (B-V)=0.8. According to (1965ApJ…142..655K), stars 96, 63, and 106 are probable cluster members. Stars 63 and 106 are cited as blue stragglers in (1988PASP..100..338G). In (1965ApJ…142..655K) attention is drawn to several `red stragglers’ that are probable cluster members. The CCD study (1990MNRAS.243..492K) mentions the existence of a possible FK Comae star. Spectra from (1965ApJ…142..655K): star 39, G0V; star 45, F2IV; star 102, F2IV; star 67, G2V; star 129, F9V; star 63, G0V. Star 123 = V6 (1993MNRAS.265…34K) is an EW variable (1993MNRAS.265…34K); the authors also discover two EW variables (V1 and V7) that they mark as stragglers: both stars have mean (B-V) colours redder than our limit of 0.8. |
| Berkeley 58 |
The diagram of stars up to a radius of 3’ around the cluster centre has been examined. |
| Berkeley 60 |
Only straggler candidates inside a radius of 2’ around the centre of coordinates have been considered. |
| Berkeley 62 |
The diagram of stars inside a radius of 3’ around the centre of coordinates has been examined. |
| Berkeley 64 |
Only straggler candidates inside a radius of 3’ around the centre of coordinates have been considered. |
| Berkeley 66 |
The blue straggler area is heavily contaminated by field stars. Only straggler candidates inside a radius of 2’ around the centre of coordinates have been considered. |
| Berkeley 69 |
The identification chart was not available. |
| Berkeley 70 |
Only straggler candidates inside a radius of 4’ around the centre of coordinates have been considered. The red limit of the blue straggler area is (B-V)=0.71. |
| Berkeley 81 |
Only straggler candidates inside a radius of 5’ around the centre of coordinates have been considered. The red limit of the blue straggler area is (B-V)=1.15. |
| Berkeley 86 |
The dereddened diagram of possible members in (1992AJ….103..916F) was examined. |
| Berkeley 87 |
The dereddened diagram of possible members in (1982PASP…94..789T) was examined. |
| Berkeley 99 |
The red limit of the blue straggler area is (B-V)=0.75. |
| Blanco 1 |
Zeta Sculptoris=HD 224990. The identification chart is in the ubvy photometry (1988A&AS…76..101W), where the star Zeta Scl is cited as a blue straggler and is given the following: (b-y)=-0.064, (u-b)= 0.518, m1=0.101, c1=0.441, and spectrum B6III-B5V. |
| Bochum 1 |
Apparent cluster diameter from (1975A&AS…20…85M). |
| Collinder 1 |
Star 29 appears as a blue straggler in the diagrams of (1960AAHam…5..215H), but it is located at about five cluster radii from the centre to the west. |
| Collinder 101 |
Stars 1=HD 259954, 4 (pg)=HD 259989, and 4 (pe)=HD 260022 are cited as blue stragglers in (1985ApJ…294L.103A) and (1982A&A…109…37M). Reference (1985ApJ…294L.103A) gives: star 1 (sp. B2IV, v.sin i<40km/s); star 34 (sp. B9.5V, v.sin i= 200km/s (approx)); star 4 (sp. A0p(Si)). |
| Collinder 123 |
All the cluster parameters are from (2005, unpublished data). |
| Collinder 131 |
Adopted cluster centre: star 157 (ref. 104). Star 266 is an eclipsing binary (1996A&A…314..448L). |
| Collinder 135 |
Selected cluster angular diameter from (1987, Lund Catalogue of Open Cluster Data). |
| Collinder 141 |
Star 1=BD-20 1913 has a spectrum B0III (1979A&AS…37..345F). |
| Collinder 161 |
The diagrams in (1976ApJS…30…97D) and (1967MNSSA..26…30W) were examined. Star 175 is HD 61831, star 283 is HD 63465. Adopted cluster centre: star 962 (1967MNSSA..26…30W). The ubvy-beta study (1983AJ…..88..197E) casts doubt on the physical reality of this cluster. Star 283 is cited as a blue straggler in (1985A&A…153..260K). Reference (1975MSS…C01….0H) gives the spectra B3V (star 175), and B2IV/V (star 283). |
| Collinder 174 |
Star 213=HD 67097 has a spectrum A0V (1973A&AS….9..229L). |
| Collinder 175 |
Star 52 (sp. B3) is a probable non-member according to (1968ArA…..4..587L). The UBV photoelectric study (1988A&AS…72..193J) gives this star (B-V)=0.06. |
| Collinder 178 |
Star 544=HD 69067 (Ap), 682=HD 68450 (B0III), spectra from (1975MSS…C01….0H). |
| Collinder 202 |
Star 24 = HD 75067 (sp. B8/9IV/V(n)) (1975MSS…C01….0H). Adopted cluster centre: star 8 (1973A&AS….9…97V). Star 2 appears as a straggler but is a non-member according to (1979, Sydney Obs.Pap., No.86). |
| Collinder 205 |
The dereddened colour-magnitude diagram of (1973A&AS….9…97V) was examined. |
| Collinder 207 |
All cluster parameters are from (2003RMxAA..39…41A). Only stars up to 2’ from the cluster centre were considered. From their colour-colour diagrams, (2004AJ….128.2331K) conclude that stars 4 and 19 must be foreground stars. |
| Collinder 214 |
The dereddened colour-magnitude diagram of suspected members in (1977A&A….59..141F) was examined. |
| Collinder 22 |
Star 7 has a spectrum A05 (1965ApJS…12..215H). |
| Collinder 220 |
All the cluster parameters are from (2003RMxAA..39…41A). |
| Collinder 223 |
Stars 35 and 80 are cited as blue stragglers in (1991PASP..103..998C). Star 2, which also appears as a blue straggler, is at 3.5 cluster radii from the centre, which has been set on star 84 (ref. 80). Star 35=HD 305295, star 80=HD 305218. |
| Collinder 237 |
Reference (2000A&A…356..517A) observes spectroscopically three of the straggler candidates listed in the earlier version of the catalogue (1995A&AS..109..375A): stars 43, 115, and 117. They show low projected rotational velocities and no specific spectral peculiarities. |
| Collinder 258 |
= Collinder 258. The apparent cluster diameter was taken from (1971VeBon..83…19S). Star 2=HD 108295 has a spectrum B2(V)N (1975MSS…C01….0H). |
| Collinder 261 |
The red limit of the blue straggler area above the turnoff is (B-V)=0.86. In (1995MNRAS.273…59M) 10 short-period eclipsing variables are found among the 178 straggler candidates identified by the authors from their VI CCD photometry. Among our candidates, the variables are: star 772 (EW), star 1030 (EA/EB), star 1327 (EW), star 2287 (EB/EW), star 2290 (EA/EB). |
| Collinder 265 |
Only straggler candidates inside a radius of 3’ around the centre of coordinates have been considered. |
| Collinder 268 |
= Collinder 268. Star 2 is cited as a blue straggler in (1975A&AS…20..155M). Adopted cluster centre: star 12 of (1975A&AS…20..155M). |
| Collinder 273 |
Star 1=CPD-60 4735 has a luminosity class III (1973A&AS…10..135M). |
| Collinder 305 |
The apparent cluster diameter is from (1975A&AS…20..155M). |
| Collinder 311 |
The dereddened V vs. (U-B) diagram of (1977Obs….97..129F) was examined. |
| Collinder 323 |
Selected angular diameter from (1987, Lund Catalogue of Open Cluster Data). |
| Collinder 340 |
Only straggler candidates inside a radius of 2’ around the centre of coordinates have been considered. |
| Collinder 344 |
Star 367=HD 160826 has spectrum B9V (1975MSS…C01….0H). |
| Collinder 35 |
Adopted cluster centre: star 310 in ref. (1988AcA….38..339K). In the same reference, stars 190, 245, 295, 335, and 424 are cited as blue stragglers. |
| Collinder 370 |
Only straggler candidates inside a radius of 2.5’ around the centre of coordinates have been considered. |
| Collinder 379 |
Only straggler candidates inside a radius of 1’ around the centre of coordinates have been considered. |
| Collinder 385 |
The Stromgren photometry (1982AJ…..87.1197S) cites stars 53 and 61 as blue stragglers. |
| Collinder 394 |
The dereddened colour-magnitude diagram in (1985AJ…..90.1231T) was examined. |
| Collinder 413 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. Star 1 = HD 190918 = V1617 Cygni is a WR, double star of components near the cluster turnoff (1974A&AS…15..181C). Star 4 = HD 190864 (O7IIIf) is cited as a blue straggler in (1982A&A…109…37M). |
| Collinder 422 |
The apparent cluster diameter was taken from (1970PDDO….4….1H). The de- reddened diagram of (1988A&AS…72..193J) was examined. |
| Collinder 43 |
The apparent cluster diameter was taken from (1970PDDO….4….1H). Star 3 has a spectrum A5V according to (1965ApJS…12..215H). |
| Collinder 431 |
According to (1987A&AS…67..545S) there would be two clusters: the first one at 700 pc, and the second one at 1500 pc. |
| Collinder 432 |
Adopted cluster centre: star 57 (ref. 160). All the blue stragglers lie on the periphery of the cluster, but they are members according to (1973A&AS….9..261H). In particular, note the close group of stars 155-156-157. |
| Collinder 435 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. |
| Collinder 443 |
Star 3=HD 208440 has a spectrum B1V (1965ApJS…12..215H). |
| Collinder 459 |
Probability memberships according to (1984, Special Issue (Shangai)): star 10, 62%; star 102, 54%; star 108, 61%. |
| Collinder 461 |
Star 586 is cited as a blue straggler in (1982A&A…109…37M), and has a spectrum B2II-IV (1958ApJ…128..161K). Probability memberships according to (1984, Special Issue (Shangai)): star 586, 70%; star 810, 66%; star 1360, 72%. |
| Collinder 49 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. |
| Collinder 58 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. |
| Collinder 60 |
Each one of the five blue stragglers has a membership probability of 99% according to (1998A&AS..133..387B). Stars 2020, 2072, 2090, and 2110 are cited as blue stragglers in (1977AJ…..82..612H). |
| Collinder 97 |
Cluster reddening from (1987JApA….8..219B). |
| Haffner 17 |
All the cluster parameters are from (2005, unpublished data). The diagram of stars up to 3’ of the centre was examined. |
| Hogg 10 |
The apparent cluster diameter was taken from (1976AJ…..81..155C). |
| Hogg 17 |
Star 1 appears as a straggler but is a non-member according to (1968ArA…..4..493L). |
| IC 1805 |
The dereddened colour-magnitude diagram of (1969MNRAS.144…55I) was examined. |
| IC 2581 |
The dereddened colour-magnitude diagram in (1978AJ…..83.1081T) was examined. |
| IC 2944 |
Star 21=HD 101545 has a spectrum B0III (1975MSS…C01….0H). |
| IC 5146 |
The cluster is given an age of 3 Myr in (1988A&AS…76..101W). The dereddened diagram of (1959ApJ…130…57W) was examined: star 42=BD+46 3474 has a heavily reddened B1V spectrum. |
| King 15 |
Only straggler candidates inside a radius of 2’ around the centre of coordinates have been considered. |
| King 2 |
Only candidates inside r/R=1 were considered. Adopted cluster centre: star 419 of (1990A&A…240..262A). |
| King 8 |
Star 105 (sp. F3V) belongs to the field according to (1984ApJ…286..552C). Star 8 could not be identified in the chart. |
| Lynga 1 |
Star 2=DM-61 04247. |
| Melotte 101 |
All the cluster parameters except the apparent diameter were taken from (2005, unpublished data). |
| Melotte 102 |
Star 18=Theta Carinae=HD 93030 is a well known blue straggler. In (1969AJ…..74.1011H) this star is given the following: v=2.78, (b-y)=-0.094, m1=0.063, c1=-0.078, beta=2.603, spectrum: B0Vp. Reference (1982A&A…109…37M) gives it a projected velocity v.sin i=195km/s. Theta Car is a spectroscopic binary of period 1.77 days and eccentricity 0.446 (1979PASP…91..442W), thought to be the result of a mass transfer event in a close binary: an account of this interpretation can be found in (1988AJ…..96..635E). |
| Melotte 103 |
Only the photoelectric colour-magnitude diagram of (1980A&AS…39…11F) was examined. The cluster shows a remarkable concentration of its more massive stars (1980A&AS…39…11F).The following membership probabilities are from (1978, Sydney Obs.Pap., No.79): star 105, 90%; star 420=HD 96059, 60%; star 449= HD 96729, 91%; star 471=HD 96012, 35%; star 566=HD 96879, 62%. Stars 115 and 409, which appear as stragglers in (1980A&AS…39…11F), are non-members according to (1978, Sydney Obs.Pap., No.79). Spectra: star 420, B9III (1975MSS…C01….0H); star 449, B9IIIp (1976ApJ…205..807H); star 471, B8IV/V (1975MSS…C01….0H). References (1985ApJ…294L.103A) and (1982A&A…109…37M) cite star 155 as a blue straggler. |
| Melotte 104 |
Star 98, which also appears as a blue straggler, is a non-member according to (1994A&AS..107…39C). |
| Melotte 105 |
All the cluster parameters except the apparent diameter were taken from (2005, unpublished data). |
| Melotte 106 |
Adopted cluster centre: star 31 (1969ApJ…155..439E). The ubvy study (1983AJ…..88..813E) cites stars 3, 29, 33 and 56 as blue stragglers and stars 20 and 34 as `red stragglers,’ although stars 3, 29 and 56 are probable non-members. The CCD photometry (1991AJ….102.1056A) considers stars 29 and 33 as probable cluster members, and stars 53 and 56 as likely non- members. An important number of binaries around the turnoff is thought to be present (1991AJ….102.1056A). |
| Melotte 108 |
Only the photoelectric colour-magnitude diagram of (1981AJ…..86.1210J) was examined. |
| Melotte 109 |
All cluster parameters are from (2005, unpublished data). |
| Melotte 110 |
Adopted cluster centre: star 151 (1961AN….286..105L). The apparent cluster diameter is from (1970PDDO….4….1H). In (1982A&A…109…37M) star 131 = DM-61 3143 is cited as a blue straggler. |
| Melotte 111 |
= Coma cluster. Adopted cluster centre: star 91 in (1938LicOB..18..167T). Star 146 = 17 Comae = HD 108662 = AI Comae is a cluster member (1938LicOB..18..167T) and an Alpha Canum Venaticorum variable (1982A&A…109…37M). It is cited as a blue straggler by (1985ApJ…294L.103A), (1977IBVS.1293….1H), and (1982A&A…109…37M). Reference (1985ApJ…294L.103A) gives this star a projected velocity v.sin i=15km/s and a spectrum A0Vp(Sr,Cr,Si,Eu). |
| Melotte 114 |
= Kappa Crucis cluster. The colour-magnitude diagram with probable members in (1984A&AS…58..411D) was examined. The apparent cluster diameter is from (1970PDDO….4….1H). Star F = CPD-59 4564 = BW Crucis has a spectrum B2III (1970ApJ…161..855S), a membership probability of 92% (1981, Sydney Obs.Pap., No.89), and is a beta Cephei variable (1978AJ…..83.1179J). |
| Melotte 12 |
The membership study (1991A&AS…87…69P) gives star 209=BD+36 367 a probab- ility of 99%. The ubvy study (1983ApJ…267..207T) gives star 209 the folowing: v=9.74, (b-y)=0.028, m1=0.153, c1=1.002. Reference (1988AJ…..96..635E) cites star 209 as a blue straggler and star 110 as a `red straggler.’ References (1974ApJ…194..657H), (1977IBVS.1293….1H), and (1994AJ….108.1828M) also cite star 209 (spectrum B9.5p?) as a blue straggler. Star 209 is an X-ray source (1996A&A…305..806B), and it is not a photometric variable (2001A&A…375..387V). Stars 32, 271, 309, and 1496 also appear as blue stragglers in the colour-magnitude diagrams of (1963ApJ…138..356E), (1989AJ…..98..888F), and (1953ApJ…117..356J), but they are non-members according to (1991A&AS…87…69P). |
| Melotte 120 |
Star 1 is cited as a blue straggler in (1982A&A…109…37M). |
| Melotte 123 |
Star 66, which appears as a straggler, is a non-member (1993A&AS…99….1C). |
| Melotte 125 |
All cluster data except the apparent diameter are from (2005AN….326….3A). |
| Melotte 130 |
The following spectra are from (1975MSS…C01….0H): star 2115=HD 133136 (B8II), star 2222=HD 133279 (A2IV/V), star 2261=HD 133181 (A0II/IV), star 3249=HD 132922 (B9IV/V). |
| Melotte 131 |
Adopted cluster centre: star 37 (1968PROE….6..209B). Only the photoelectric data in (1968PROE….6..209B) were taken into account. |
| Melotte 137 |
All the cluster parameters except the apparent diameter are from (2005, unpublished data). The diagram up to 2.5’ from the cluster centre was examined. |
| Melotte 139 |
Star 1=HD 143348 (B3IVe) is cited as a blue straggler in (1982A&A…109…37M). |
| Melotte 145 |
Star 8 is a cluster member according to (1987AJ…..94.1237P). |
| Melotte 146 |
All the cluster parameters except the apparent diameter were taken from (2005, unpublished data). |
| Melotte 149 |
The dereddened colour-magnitude diagram of (1987Obs…107..107K) was examined. |
| Melotte 155 |
The apparent cluster diameter was taken from (1973A&AS…10..135M). |
| Melotte 161 |
Selected angular diameter from (1987, Lund Catalogue of Open Cluster Data). Star 9 (WEBDA) is cited as a straggler in (1985ApJ…294L.103A), (1982A&A…109…37M), and (1988IBVS.3199….1N), but it is a non-member according to (1974PASP…86..284F). |
| Melotte 169 |
The colour-magnitude diagrams in (1988AJ…..95.1453A) and (1971ApJ…166…87E) were examined. In the CCD photometric study (1988AJ…..95.1453A) stars 9 and 46 are considered as probable binaries; the presence of many binaries in the turn- off area is also suggested. Stars 9, 40, 46, and 75 are cited as blue stragglers in (1971ApJ…166…87E). Star 46 has a spectrum A5IV, and stars 9 and 75 are non-members according to (1972A&AS….7..231L). Membership probabilities based on radial velocities (2002A&A…386..187M): star 11, 23%, star 75, 61%. The DDO photometry of the cluster giants (1982AJ…..87..360S) finds CN overabundance in the stragglers, and draws attention to the possible relation between this fact and the blue straggler phenomenon. Other clusters with blue stragglers and CN-strong giants (1982AJ…..87..360S): Melotte 66, NGC 2204, NGC 2420, NGC 2682, and NGC 7789. According to (1998A&A…335..517B), star 46 is an X-ray source, a probable cluster member, and a probable binary. |
| Melotte 183 |
Only the colour-magnitude diagram based on the photoelectric data of (1959BAN….14..265K) was examined. Adopted cluster centre: star 65 (1959BAN….14..265K). Star 26=HD 162374 is cited as a blue straggler in (1981ApJ…246..817E), where it is found to be similar to Theta Carinae. In (1985ApJ…294L.103A) and (1982A&A…109…37M) stars 26 and 56=HD 162586 are also cited as blue stragglers. In (1969ApJ…156..983A) these stars are given the spectra B6V and B8V. Membership probabilities based on proper motions (1969PASAu…1..207C): star 26, 53%; star 56, 57%. Probability based on radial velocities (1985A&AS…61…75G): star 56, 92%. This star is also a visual binary (delta=0.0 mag,rho=0.3”) (1974ApJ…194..657H). The stragglers of this cluster were studied spectro- scopically by (2000A&A…356..517A). |
| Melotte 184 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. Stars 1= HD 163245 and 12 have spectra A4V (1969AJ…..74..375C) and A0V (1965ApJS…12..215H). The proper motion study (1980A&A….88..102S) assigns these stars the membership probabil- ities 88% and 98%. |
| Melotte 2 |
Membership probabilities according to (2003AJ….126.2922P) and (1972AJ…..77…74U): star 1003, 90%; 1032, 98%; 1043, 98%; 1050, 97%; 1093, 98%; 1102, 98%; 2008, 97%; 2020, 97%; 2024, 97%; 2031, 93%; 2046, 99%; 2069, 98%; 2074, 92%; 2082, 98%; 2105, 98%; 2119, 93%; 2127, 98%; 2138, 94%; 2151, 97%; 3074, 95%; 3115, 98%; 3135, 93%; 3151, 98%. Star 2189 is given 90% in (1972AJ…..77…74U) but 0% in (2003AJ….126.2922P). In the photometric study (1969ApJ…158..669E) the following stars are cited as blue stragglers: 1003, 1005, 1032, 1033, 1043, 1093, 1102, 1103, 1112, and 2046. Star 2127 is a W Ursae Majoris eclipsing binary (2003AJ….126..276K). An hyphothetical relation between the blue stragglers and the apparent lack of bright giants in the cluster nucleus is discussed in (1990AcA….40…61K). In (1989AJ…..97..759T) and (1972AJ…..77…74U) it is suggested that the cluster is somewhat younger than is usually agreed, so several stars that appear as blue stragglers would not be such. In the proper motion study (1996AJ….111.1205D) it is found that the stragglers are not more centrally concentrated than the red giants. In the CCD study (1990AcA….40…61K) the discovery of a probable FK Comae variable (star V8) is reported; this star may be a `red straggler’ candidate. |
| Melotte 20 |
= Alpha Persei cluster. The cluster parameters are from (1987, Lund Catalogue of Open Cluster Data). Star HD 22928 = Delta Persei (sp. B6n) is a cluster member according to its radial velocity (1969PDAO…13..329P). |
| Melotte 201 |
According to the proper motion study (1973A&AS….9..213S), star 32=HD 169959 has a probability membership of 90%, and star 66=HD 170054 has 70%. Star 159=HD 170563 is a cluster member according to (1958ApJ…127..539H). References (1985ApJ…294L.103A), (1974ApJ…194..657H), (1977IBVS.1293….1H), and (1977A&AS…27..117M) cite stars 32 and 159 as blue stragglers. In (1985ApJ…294L.103A) the following spectra and projected velocities are given: star 32, A0III, v.sin i<40km/s; 159, B6IVp(Si), v.sin i<20km/s. Star 66 has a spectrum B6IV (1977PASP…89..274L). Star 155 is HD 170472. Reference (2000A&A…356..517A) also studies spectro- scopically the stragglers 32 and 66. |
| Melotte 204 |
Spectra: Star 1=HD 170475, B8III/IV (1975MSS…C01….0H); star 50=HD 170682, B6V (1957MNRAS.117..193F); star 91=HD 170719, B9V (1957MNRAS.117..193F); star 163=HD 170835, B2.5Vne (1977ApJS…35..111G); star 167=HD 170836, B8II (1975MSS…C01….0H). |
| Melotte 21 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. References (1985ApJ…294L.103A) and (1982A&A…109…37M) cite star 2=HD 21728 as a blue straggler. In (1985ApJ…294L.103A) this star is given a spectrum A0II-IIIp(Si(st),Mg(wk)) and a projected velocity v.sin i<40km/s. Star 4=HD 275501 has a spectrum G8II according to (2000AJ….120..333S). Both stars have a membership probability of 99% (ref. 148). |
| Melotte 210 |
Probabilities of membership by (1975A&AS…19..211H): Star 104=HD 172012, 67%; star 120, 93%; star 1142, 62%. Stars 5 and 58 (ref. 173) appear as stragglers but they are non-members according to the same reference. Spectra from (2002AJ….124..989G): star 104, A0III+; star 279= HD 172248, B8IV; star 280=HD 172271, kB9 A2 IIIp SiSr ((shell)). Star 104 is cited as a probable blue straggler in (1978PASP…90..157S). It is suggested in (1999AN….320…35A) that the cluster member and supergiant HD 172365 is a post-blue straggler resulting from the merger of a close binary system. |
| Melotte 213 |
The colour-magnitude diagram in (1980AJ…..85..432S) was examined. It displays stars with p>=90% according to the proper motion study (1977A&AS…27..117M). Star 1095 is given in (1977A&AS…27..117M) a membership probability of 61%. Adopted cluster centre: star 1066 (ref. 277). The apparent diameter is from (1980AJ…..85..432S). References (1985ApJ…294L.103A) and (1982A&A…109…37M) cite star 1095 as a blue straggler; in (1985ApJ…294L.103A) this star is given a spectrum B3p. |
| Melotte 214 |
Stars 235 and 293 appear on the main sequence rather than in the straggler area according to the photoelectric data (1961PUSNO..17..343H). How- wever, when the photographic data of the same reference are plotted, stars 298, 301, and 335 appear as stragglers. Member- ship probabilities by (1983A&AS…51..541H): star 235, 67%; star 293, 40%. Star 277 also appears as a straggler in (1999AJ….117..937S), but it is not a cluster member according to (1983A&AS…51..541H). |
| Melotte 22 |
Adopted cluster centre: star 1432=HD 23630, which has a spectrum B8IIIe (1986ApJ…309..311B), a projected velocity v.sin i=230 km/sec (1987ApJ…312..778M), and it is cited as a blue straggler in (1982A&A…109…37M). |
| Melotte 222 |
Star 147 has a membership probability of 97% (1971A&A….15..368S). |
| Melotte 223 |
The apparent cluster diameter is from (1970PDDO….4….1H). Several stragglers are pointed out in (1974A&AS…13..143A). Membership probabilities from (1972A&A….19..155S): star 32, 88%; star 35, 90%; star 36, 92%; star 40, 81%; star 55, 66%; star 59, 86%; star 65, 89%; star 70, 92%; star 96, 49%; star 103, 57%; star 118, 77%; star 6044, 33%. Attention is drawn in (1998AJ….115.1516R) on several clump stars that appear to be more massive than the turnoff stars: it is suggested that they are the descendants of blue stragglers. |
| Melotte 23 |
Diagrams in (1989AJ…..98..888F) were also examined. References (1985ApJ…294L.103A) and (1982A&A…109…37M) cite star 1 (WEBDA)=HD 26603 as a blue straggler, but in (1989AJ…..98..888F) it is assigned a membership probability of 0% according to its proper motion. Star 209 (WEBDA) also appears as a straggler in (1989AJ…..98..888F), but it is not a proper-motion member. |
| Melotte 231 |
Membership probabilities from (1985ChA&A…9..300Z): star 7, 98%; star 13, 97%; star 87, 86%; star 94, 99%. Stars 7 and 13 (2002AJ….124.2093R), and 59 and 349 (WEBDA) are cited as straggler candidates in (1969MNRAS.144..449C) and (1994AJ….108.1828M). Star 59 is also cited as a blue straggler in (1988PASP..100..338G), although is probably a non-member. |
| Melotte 232 |
The following membership probabilities are from (1972A&A….16…58S): star 50, 83%; star 70, 90%; star 153, 90%; star 172=HD 334735, 89%; star 175, 85%; star 179=HD 334755, 83%. Some spectra: star 50, F0 (1957AJ…..62..175V); star 70, F5II-III (1958ApJ…128..562W); star 153, A0 (1960StoAn..20i…1L); star 175, A5 (1960StoAn..20i…1L); star 179, A0 (1960StoAn..20i…1L). Stars 70 and 77 are cited as blue stragglers in (1988PASP..100..338G). |
| Melotte 240 |
Identification chart in (1954ZA…..34….1B); Adopted cluster centre: star 1. In (1971AJ…..76..110H) star 370 is given the following: v=9.95, (b-y)=0.052, m1=0.093, c1=0.528, beta=2.742, spectrum A0Vp. It is a cluster a membership probability of 96% (1937IzPul.126…42L). |
| Melotte 245 |
The first selection was based on the photometric study (1958ApJ…128..174B), which is complete (it includes stars up to 7.5’ from the cluster centre); the star designations are from (1923VeBon..18….1K). A further selection took into account the detailed membership analysis for each blue straggler (1982ApJ…263..199B), and the proper-motion study (1981A&AS…43..337M). The following membership probabilities are from (1981A&AS…43..337M): star 88, 98%; star 168, 77%; star 192, 52%; star 197, 46%; star 282, 97%; star 316, 98%; star 342, 96%; star 371, 98%; star 409, 53%; star 410, 78%; star 453, 98%; star 651, 98%; star 677, 53%; star 696, 98%; star 746, 98%; star 753, 95%; star 861, 88%; star 1047, 96%; star 1097, 70%; star 1211, 97%. Star 1211 seems to be on the magnitude limit that the mass transfer theory predicts, and star 677 is above that limit (1980PASP…92..514B). An extensive halo of blue stragglers was described in (1980PASP…92..682M), but these stars would belong to the field (1985AJ…..90.1247T): at most, the strag- glers have the same radial distribution that the cluster giants. In the photometric ubvy study of 28 blue stragglers (1985AJ…..90.1247T) there appears to be no peculiar stars among them, except star 1211 (sp. Ap); in general, the objects seem to have evolved from the ZAMS. A spectroscopic study of eight, confirmed stragglers (2001A&A…366..490S) shows deficiency of surface Mg and low projected rotational velocities. Star 753 is a Delta Scuti variable (star V10 in ref. 189). In (1965ZA…..61…97S) this cluster is given E(B-V)=0.31 and age= 1.6 Gyr. |
| Melotte 25 |
Star 56 is a cluster member acording to the proper motion and radial velocity study (1952BAN….11..385V). Adopted cluster centre: star 57 of the same reference. References (1985ApJ…294L.103A) and (1982A&A…109…37M) cite star 56 as a blue straggler. Star 56=68 Tauri=HD 27962 has a spectrum A3V and an optical companion of magnitude 9 (1982AJ…..87.1527C). The blue straggler does not show anomalous lithium abundances (1989A&A…220..197B). In (1985ApJ…294L.103A) this star is given a spectrum Am(K/H/M=A2/A3:/A5) and a projected velocity v.sin i=18km/s. It has been suggested (2001ApJ…563..971O) that the white dwarf component of the binary V471 Tauri in this cluster descends from a blue straggler. The selected angular diameter in (1987, Lund Catalogue of Open Cluster Data) is listed. |
| Melotte 26 |
The dereddened colour-magnitude diagram in (1992AJ….104.1865T) was examined. |
| Melotte 27 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. The apparent cluster diameter was taken from (1970PDDO….4….1H). Star 1=HD 30650 has a membership probability of 91% according to (1973AJ…..78…53K), and a spectrum B3V according to (1965ApJS…12..215H). Star 4 (ref. 181) = 578 (WEBDA) also appears as a blue straggler, but it is not a cluster member according to (1973AJ…..78…53K). |
| Melotte 35 |
The diagrams in (1961PUSNO..17..343H), (1964AnWie..26…37P), and (1999AJ….117..937S) were examined. Stars G and 4 have spectra B9V and B3V (1965ApJS…12..215H). Star B is HD 281143. Stars 10, 51, 116, and 132 (WEBDA numbers) appear as stragglers in some diagrams, but as main-sequence stars in others. |
| Melotte 36 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. |
| Melotte 38 |
Star 56=HD 248599. Membership probabilities (1985ChA&A…9..300Z): star 9, 86%, star 56, 12%, and star 342, 27%. Star 204, which also appears as a straggler, has a probability of 9% (1985ChA&A…9..300Z). |
| Melotte 40 |
The apparent cluster diameter was taken from (1970PDDO….4….1H). Only stars inside a radius of 3’ were considered. Some membership probabilities from (1997AN….318..253K): star 3, 73%, star 14, 32%, star 25, 43%, star 414, 86%. Star 117 (=3347) has a 6% and star 228 (=3142) is not a cluster member (1997AN….318..253K). |
| Melotte 41 |
Star 218=HD 41940 has a membership probability of 72% (ref. 278) and a spectrum B2V (1965ApJS…12..215H). It is cited as a straggler en (1986AJ…..91..557M). |
| Melotte 42 |
The cluster parameters are from (1999MNRAS.304..883P). |
| Melotte 44 |
All the cluster parameters except the apparent diameter are from (2005, unpublished data). Reference (1976MNRAS.174..225H) draws attention to the strong central concentration of the blue stragglers, also observed in M67 and Melotte 66. |
| Melotte 48 |
Only straggler candidates inside a radius of 2’ around the centre of coordinates have been considered. |
| Melotte 50 |
Adopted cluster centre: star 14 (ref. 214). Star 10 is cited as a blue straggler in the same reference. |
| Melotte 51 |
This cluster shows mass segregation (1978PASJ…30..123Y); in particular, the binaries appear concentrated. Star 62=HD 49010 is cited as a blue straggler in (1985ApJ…294L.103A) and (1982A&A…109…37M). In (1985ApJ…294L.103A) this star is given a spectrum A2:Vp (Si(st),Ca(wk)), and a projected velocity v.sin i=40,100 km/s, while in (1959AJ…..64..170V) it is given a membership probability of 91%. |
| Melotte 52 |
Adopted cluster centre: star 102 (1978A&AS…34..241F). Reference (1979PASP…91..636L) gives the spectra: star 109 = HD 49333, B9IV/B7IIIn(He(wk)); star 116 = HD 49024, B9IIIp(Hg-Mn). The proper motion study (1987AJ…..93..347I) gives star 116 a membership probability of 6%. Stars 109 and 116 are cited as blue stragglers in (1978A&AS…34..241F) and (1981ApJ…247..507E), respectively. Star 109 is also cited as a blue straggler in (1982A&A…109…37M), where it is given a spectrum B4p(He(wk)). |
| Melotte 59 |
Star 168 (ref. 34) = 2668 (WEBDA), which appears as a straggler in the diagrams of (1976AUBas.C……1B), has a membership probability of 0% according to (1993Ap&SS.201…71M). The same reference gives star 59 a 75%. Star 6=HD 53206, star 127=HD 289581 |
| Melotte 64 |
Stars 51 and 100 are cited as blue stragglers in (1968ApJ…152…83E) and (1994AJ….108.1828M). The last reference also considers stars 1, 69, and 82 (WEBDA numbers) as stragglers. Adopted cluster centre: star 46 (1968ApJ…152…83E). |
| Melotte 66 |
The red limit of the straggler area is (V-I)=0.76. In (1964ApJS….8..352L) it is suggested that a spread in the metal abundances may account for the observed dispersion around the turnoff in the colour- magnitude diagram. In that case, several stars that appear as blue stragglers would not be such. |
| Melotte 68 |
Reference (1982A&A…109…37M) cites star 1=HD 60855 as a blue straggler of spectrum B2IVe and projected velocity v.sin i=320km/s. The ubvy- beta photometry (1984MNRAS.211..659S) gives star 1 the following: v=5.684, (b-y)=0.004, m1=0.042, c1=0.152, beta=2.554. Adopted cluster centre: star 81 (1962PROE….3…21S). |
| Melotte 69 |
Star 17 (WEBDA number) appears as a straggler in the diagrams of (1990AJ…..99.1504A) but is a non-member according to (1972A&A….20..425V). Other membership probabilities from the same reference: star R, 77%, star g, 90%, star 2206a, 87%. Stars 1116, 2206a, and g are cited as blue stragglers by (1994AJ….108.1828M) based on the photometry (1976AUBas.C……1B). |
| Melotte 75 |
Diagrams from (1959ArA…..2..379L) and (1962PROE….3…21S) were examined. Star 10 = HD 61954, star 1 = HD 62000, star 2 = HD 62129. Spectra from (1975MSS…C01….0H): A1II/III (star 1), B8IV/V (star 2), and B6Ib (star 10). |
| Melotte 76 |
Star 35=ADS 6339 is a binary (delta=0.5 mag, rho=0.7”). |
| Melotte 78 |
The apparent cluster diameter is from (1970PDDO….4….1H). |
| Melotte 80 |
The following membership probabilities are from (1981ApJ…243..827C): star 441, 42%, star 447, 94%, star 462, 71%, star 467, 91%, star 510, 88%, star 571, 42%, star 691, 88%, star 769, 91%. Star 589 (1997MNRAS.291..763M) = 3129 (WEBDA), which also appears as a straggler, is a non-member according to (1981ApJ…243..827C). |
| Melotte 82 |
Adopted cluster centre: star d in (1955ApJ…121..628C). Star A = HD 66194 = V374 Carinae has a membership probability of 99% (1978, Sydney Obs.Pap., No.81), and a spectrum B2Vne/B3ne (1973A&AS….9..233F). This star is cited as a blue straggler in (1982A&A…109…37M) and (1983A&AS…53..419V), and is considered to be an analogue of the straggler Theta Carinae in IC 2602 by (1981ApJ…246..817E) and (1979PASP…91..442W). According to (2003A&A…404..365G), both components of this binary are main-sequence stars, and would experience mass transfer before abandoning this stage. |
| Melotte 83 |
Stars 423, 610, and 653 appear as stragglers but they are not cluster members according to (2000A&A…361..945L). |
| Melotte 87 |
All cluster data except the apparent diameter are from (2005AN….326….3A). |
| Melotte 88 |
= Praesepe. References (1985ApJ…294L.103A) and (1982A&A…109…37M) cite star 265 = HD 73666 = 40 Cancri as a blue straggler. Star 265 is a Si star (spectrum A1IIIp(Si)s) according to (1986PASP…98..307A), but this is not confirmed by (1998A&A…334..139A). Star 300=HD 73731=Epsilon Cnc has an spectrum Am(K/H/M= A5/A6/F0) (1986PASP…98..307A), and is a binary (1999ApJ…521..682A). Both stars are cluster members (1927PGro…41….1K). A spectroscopic study of the four straggler candidates listed in (1995A&AS..109..375A) is presented in (1998A&A…334..139A): besides star 265, the other three stars are not included in the present catalogue, since they rather seem located on the `blue hook.’ According to (1998A&A…334..139A), stars 224 = HD 73618 and 265 are Am, star 348 = HD 73819 is Ba-deficient, and star 50 = HD 73210 es metal-deficient. Internal mixing does not seem to be here a plausible mechanism to explain the stragglers (1998A&A…334..139A). |
| Melotte 90 |
All the cluster parameters except the apparent diameter are from (2003RMxAA..39…41A). |
| Melotte 94 |
= M67. This cluster has a number of well-known blue stragglers, a detailed spectral analysis of which can be found in (1991A&A…245..467M). The photometry listed in (1989RMxAA..17…31S) was used; it includes all the stars with a membership probability greater than 50% according to the proper motion study (1977A&AS…27…89S). The adopted cluster centre is star 1023 of (1977A&AS…27…89S). All the stars with probability greater than 80% are listed in our catalogue. Note that the WEBDA numbers are the often-quoted Fagerholm numbers (e.g.: star 1284 = F190). The following are the membership probabilities: star 145(94%), 277(93%), 740(87%), 751(96%), 752(95%), 821(89%), 856(90%), 968(95%), 975(90%), 977(93%), 984(95%), 997(93%), 1005(95%), 1031(91%), 1036(91%), 1066(90%), 1072(95%), 1082(99%), 1165 (93%), 1183(95%), 1195(96%), 1263(89%), 1267(93%), 1273(91%), 1280(93%), 1284(95%), 1434(91%), 1440(94%), 1947(86%), 2204 (83%). Most of these stars are also catalogued as stragglers by (1994AJ….108.1828M). A possible relation between the blue stragglers and the clump' stars is discussed in (1981ApJ...247..503E). In the IR study (1984ApJ...279..237P) of the five bluest stragglers, two of them (1284 and 1434) are found to show infrared excesses that are interpreted as signs of the presence of evolved companions (i.e. they may be Algol-type binaries). In the case of 1284, the binary character has received support from the discovery of radial velocity variations, which have been interpreted (1992PASP..104.1268M) as manifestations of a binary of period 4.18 days and eccentricity 0.205. This star is a good example in support of the mass transfer theory to explain some stragglers (1992PASP..104.1268M). However, star 977 is above the magnitude limit that the same theory predicts, although its membership is under discussion (1991A&A...245..467M). Stars 1280 and 1284 are small-amplitude pulsating variables of Delta Sct type (1992AJ....103.1945G). In (1986AJ.....92.1364M) it is shown that the spatial distribution of the blue stragglers (strong central concentration) is similar to that of the cluster binaries;an evolutionary relation between the two populations is suggested (1986AJ.....92.1364M). Stars 997 (2004A&A...418..509V) and 1082 (1993A&A...269..175B) are X-ray sources; star 1082 is also a triple star, two components of which would be blue stragglers (2003AJ....125..810S). Several red stragglers’ are pointed out in (1989AJ…..97..431E), and in (1986AJ…..92.1364M) star F136 is associated with an evolutionary stage related to the blue strag- glers (it is a binary star).Through the determination of lithium abundances on some stragglers, a form of mixing affecting their external layers has been proposed (1981ApJ…247..503E). Star 984 would not be an unresolved pair,but a single, genuine' blue straggler (2000AJ....120.1913S). These authors analyse high-resolution spectra of stragglers and main-sequence turnoff stars, and find that their metallicities and abundance ratios are not significantly different. Based on arguments from hydrodynamical models of stellar collisions, they claim that the upper limits for the lithium abundances of all blue stragglers are consistent with a formation process without mixing. In reference (1997ApJ...481L..93L) is made a detailed analysis of the spectroscopic binary and red straggler’ 1040 (ref. 352), and it is proposed that it originated as a short-period binary and evolved through a blue straggler phase to its present state. According to (1998AJ….116..789L), stars 975 and 1082 have hot subluminous companions; this is confirmed for star 1082 in (1999A&A…347..866V). |
| Melotte 97 |
Diagrams in (1987AJ…..94…92P) were also examined. Adopted cluster centre: star 28 in (1987AJ…..94…92P). Star 99=HD 302225(B8) is cited as a blue straggler in (1987AJ…..94…92P), and is a probable cluster member (2003A&A…399..543C). |
| Melotte 98 |
The apparent cluster diameter was taken from (1988A&AS…75..353S). In the ubvy-beta photometric study (1982PASP…94..232S) stars 8 (= 108 WEBDA), 9 (= 23), 14 (= 210), 15 (= 196), 16 (= 25), 18 (= 211), 61 (= 234), and 124 (= 256) are considered to be blue straggler candidates according to their position in the beta-c diagram: five of them show peculiarities. The following spectra and membership probabilities are from (2001AJ….121.2657G): star 23, B3V, 99%; star 33, B2.5V, 96%; star 149, B3III, 81%; star 180, B2Ve, 93%; star 196, B6V, 95%. Star 108, which also appears as a straggler, is not a cluster member (2001AJ….121.2657G). |
| NGC 1252 |
Adopted cluster centre: star 10 in ref. (1983PASP…95..474B). Star 4=HD 20286 (sp. B9.5V) is a cluster member according to the same reference, where the cluster is given an age of 0.5 Gyr. |
| NGC 129 |
Adopted cluster centre: star 100 in chart of (1959ApJ…130…80A). Star 10 has a spectrum B9V (1958ApJ…128..161K) and a membership probability of 10% (1984, Special Issue (Shangai)). Star 6 (sp. A05V) also appears as a straggler, but has a prob- ability of 7% (1984, Special Issue (Shangai)). Star 8 (ref. 181) = 196 (WEBDA) is given 0% in the same proper motion study. Star 173 (WEBDA) is star D in (1959ApJ…130…80A) and star 14 in (1961PUSNO..17..343H): it appears mildly as a straggler in (1961PUSNO..17..343H), but as a main-sequence star in (1959ApJ…130…80A). |
| NGC 1348 |
Only straggler candidates inside a radius of 4’ around the centre of coordinates have been considered. |
| NGC 136 |
Cluster parameters are from (1960AAHam…5..215H). |
| NGC 1893 |
The colour-magnitude diagrams in (1995ApJ…454..151M) were also examined. Star 301005=HD 242935 has a spectrum O8V((f)) (ref. 267). |
| NGC 1901 |
Star 4=HD 35094 has a spectrum A5V (1975MSS…C01….0H), appears to belong to a subgroup of bright stars at about 18’ from the cluster centre, and is a cluster member (1969Obs….89..104M). |
| NGC 1976 |
= Trapezium. The apparent cluster diameter was taken from (1970PDDO….4….1H). The colour-magnitude diagram of (1952ApJ…116..251S) was dereddened using the reddenings for each star listed in the reference. Star 1891 (WEBDA) = Theta1 Orionis A = HD 37022 (sp. O7Vp,v.sin i=140km/s, var?), appears blueward the ZAMS in the dereddened diagram, but it is a non-member according to (1983A&AS…54..221M). |
| NGC 2129 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. |
| NGC 2175 |
The dereddened colour-magnitude diagram of (1975A&A….43..259G) was examined. |
| NGC 2345 |
The dereddened colour-magnitude diagram in (1974A&AS…16…33M) was examined. |
| NGC 2353 |
Star 71=HD 55879 has a spectrum O9II(He(wk)) and may be a blue straggler if it is a cluster member, but it is probable that it belongs to the CMa OB1 association (1990PASP..102..865F). |
| NGC 2439 |
Adopted cluster centre: star 205 (1975ApJ…197…67W). Star 2=CD-31 4911 has a spectrum B1.5Ib and is cited as a blue straggler in (1982A&A…109…37M). This may not be a true cluster (WEBDA). |
| NGC 2467 |
The dereddened colour-magnitude diagram in (1989A&AS…77..321F) was examined; the authors suggest that this is a superposition of early-type stars rather than a cluster. |
| NGC 3293 |
The dereddened colour-magnitude diagram in (1980AJ…..85.1193T) was examined. The adopted apparent diameter is from (1980AJ…..85.1193T), and the adopted centre is star 31. Star 1=HD 91824 (O7V(f)) is a probable member of the Car OB1 association (1980AJ…..85.1193T). |
| NGC 3324 |
The dereddened colour-magnitude diagram in (1977A&AS…27..145C) was examined. The apparent cluster diameter is also from (1977A&AS…27..145C). |
| NGC 366 |
The diagram of stars inside a radius of 2’ around the centre of coordinates was examined. |
| NGC 3766 |
Adopted cluster centre: star 20 (1965MNRAS.129..237S). In (1982A&A…109…37M) star 2 = HD 100856 (sp. B1.5III) is cited as a blue straggler. |
| NGC 381 |
Star 207 (ref. 91)= star 2287 (WEBDA) appears as a blue straggler in the V vs. (B-V) diagram of (1988PASP..100..693C), but it is located more than a degree towards the NE of star 79 of (1988PASP..100..693C). |
| NGC 433 |
The colour-magnitude diagram of stars inside a radius of 3’ around the centre of coordinates was examined. |
| NGC 436 |
The colour-magnitude diagram of stars inside a radius of 3’ around the centre of coordinates was examined. Stars 282 and 320 have spectra A0 (1951UppAn…2j…1B). |
| NGC 4439 |
The apparent cluster diameter is from (1973A&AS…10..135M). |
| NGC 457 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. Adopted cluster centre: star 23011 of ref. (1974VeBoc…2….1M). Star 5 = DM+57 00247 has a spectrum O9.5IV (1965ApJS…12..215H), is cited as a blue straggler in (1993A&AS…99…15F) and (1982A&A…109…37M), and is a probable cluster member (1983A&AS…51..235B). Star 7 (ref. 181) = 0038 (WEBDA) = 23094 (ref. 290) appears as a blue straggler in (1961PUSNO..17..343H), but it is a non-member according to (1983A&AS…51..235B). |
| NGC 559 |
Star 85 is cited as a blue straggler in (1977IBVS.1293….1H). In the diagrams of the photoelectric study (1982VatOP…2….1C) it appears closer to the main sequence; this star, however, is a probable non-member according to its colour and spectrum (1970PDDO….4….1H). |
| NGC 6067 |
Only the photoelectric colour-magnitude diagram of (1962MNRAS.124..445T) was examined. Star 264=DM-53 07347, star 267=DM-53 07353, star 286=DM-53 07384. The following spectra are from (1964ApJS….8..352L): 264(B5V/III), 266(B2III), 286(B8IV). Star 267 is cited as a blue straggler in (1982A&A…109…37M). |
| NGC 6231 |
Star 858 (WEBDA) = HD 152233 (sp. O6IIIfp,variable?) is cited as a blue straggler in (1982A&A…109…37M). |
| NGC 6514 |
Selected angular diameter from (1987, Lund Catalogue of Open Cluster Data). |
| NGC 6530 |
Selected angular diameter from (1987, Lund Catalogue of Open Cluster Data). |
| NGC 654 |
The dereddened colour-magnitude diagram in (1960ApJ…132..696P) was examined. |
| NGC 6611 |
Selected angular diameter from (1987, Lund Catalogue of Open Cluster Data). The dereddened colour- magnitude diagram in (1961ApJ…133..438W) was examined. |
| NGC 6834 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. Star 5 is cited as a blue straggler in (1977IBVS.1293….1H),but in (1981AJ…..86..231T) it is con- sidered to be a normal evolved star that appears bluer because of differential reddening. Star 5 = HD 332844 has a spectrum F2V (1976AJ…..81.1125T) and star 10 has a spectrum B5V (1965ApJS…12..215H). |
| NGC 6866 |
Only the photoelectric data of (1961PUSNO..17..343H) were examined. |
| NGC 7082 |
The apparent cluster diameter was taken from (1973A&AS….9..261H). Star 120 seems to appear as a straggler only in the V vs. (U-B) diagram. |
| NGC 884 |
= Chi Persei cluster. Star 17=HD 14434 is cited as a blue straggler in (1982A&A…109…37M). According to (1958ApJ…128…31J), star 17 has a spectrum O5.5Vnp, a projected velocity v.sin i=400km/s, and it is a possible variable. The reference (2002ApJ…576..880S) gives stars 17 and 20 spectra O6.5V and A0I. In (1988AJ…..96..635E) the star 2296 (WEBDA) = 19 (ref. 371) = BD+56 574 (sp. B1III) is also cited as a straggler. |
| Pismis 18 |
All the cluster parameters are from (2005, unpublished data). The diagram of stars up to 3’ was examined. |
| Pismis 2 |
Only straggler candidates inside a radius of 3’ around the centre of coordinates have been considered. |
| Pismis 7 |
All cluster parameters are from (2005AN….326….3A). |
| Roslund 3 |
The dereddened colour-magnitude diagram in (1993A&AS…97..755T) was examined. Adopted cluster centre: star 41 in (1993A&AS…97..755T). Stars A=HD 350990 and B=HD 350991 have spectra B6IIIn and are cluster members (1993A&AS…97..755T). The author assigns the unusual positions of these stars in the colour-magnitude diagram to high rotation velocities. |
| Ruprecht 115 |
Selected angular diameter from (1987, Lund Catalogue of Open Cluster Data). |
| Ruprecht 119 |
Selected angular diameter from (1987, Lund Catalogue of Open Cluster Data). |
| Ruprecht 120 |
Selected angular diameter from (1987, Lund Catalogue of Open Cluster Data). |
| Ruprecht 36 |
Star 1=CD-26 5011 appears as a straggler in (1972A&AS….7..133V), but it is a non-member according to that reference. |
| Ruprecht 46 |
The red limit of the blue straggler area is (V-I)=0.78. |
| Ruprecht 67 |
Adopted cluster centre: star 10 in (1975A&AS…20…85M). |
| Ruprecht 75 |
All cluster parameters are from (2005AN….326….3A). Only stars up to 2’ from the centre were considered. |
| Ruprecht 79 |
The dereddened colour-magnitude diagram in (1987MNRAS.229…31W) was examined. Star designations and adopted cluster centre (star J = star 3 in WEBDA) are from (1976ApJ…209..130H). Could not be a true cluster (WEBDA). |
| Ruprecht 98 |
Star 1=HD 104013 has a spectrum A0V (1975MSS…C01….0H). Adopted cluster centre: star 6 in (1973A&AS…10..135M). |
| Stock 1 |
Cluster age taken from (2002PASP..114.1382O). Star 11=HD 184762 has a spectrum B8, and star 56=HD 184121 has a spectrum B7 (1956ApJ…123..258S). |
| Stock 13 |
Star 1=HD 97597 has a spectrum B2II/III (1975MSS…C01….0H). Adopted cluster centre: star 4 in (1975A&AS…20..125M). |
| Stock 2 |
Adopted cluster centre: star 69 in (1967ApJ…147..988K). Star 2=HD 13088 (member?), star 161=HD 14172 (non-member?), star 164=HD 14183 (member?), according to (1967ApJ…147..988K); their spectra are A1V, A2V, A0V, respectively (1974AJ…..79..107M). |
| Stock 24 |
The diagram for stars inside a radius of 3’ around the centre of coordinates was examined. |
| Tombaugh 1 |
The V vs (B-V) diagram in (1983JRASC..77…31T) and the V vs. (V-I) diagram in (1995MNRAS.276..563C) were examined. Star 2 is cited as a probable straggler in (1983JRASC..77…31T). |
| Tombaugh 2 |
Only straggler candidates inside a radius of 2’ around the centre of coordinates have been considered. |
| Tombaugh 3 |
The cluster is given E(B-V)=0.80 and an age between those of NGC 752 and NGC 7789 in (1969AJ…..74.1171B). Star 459 could not be identified in the chart. |
| Trumpler 10 |
Adopted cluster centre: star 9 in (1962ArA…..3…65L). Star 2=HD 75387 has a spectrum B2V (1975MSS…C01….0H). |
| Trumpler 11 |
The adopted age is a mean value of the range determined by (1994BASI…22..381S). The adopted apparent diameter is the selected diameter given by (1987, Lund Catalogue of Open Cluster Data). |
| Trumpler 14 |
The dereddened colour-magnitude diagram was examined (1973A&AS…12..331F). The selected angular diameter is from (1987, Lund Catalogue of Open Cluster Data). |
| Trumpler 16 |
The dereddened colour-magnitude diagram was examined (1973A&AS…12..331F). The cluster apparent diameter was taken from (1992AJ….104.1865T). |
| Trumpler 18 |
Star 75=HD 97223 has a spectrum B3V (1975MSS…C01….0H). |
| Trumpler 27 |
The dereddened colour-magnitude diagram was examined (1970A&A…..5..298T). |
| Trumpler 36 |
Several possible blue and red stragglers are pointed out in (1992AJ….103..204A). |
| Trumpler 5 |
Only straggler candidates inside a radius of 8’ around the centre of coordinates have been considered. The red limit of the blue straggler area is (B-V)=0.87. |
| Trumpler 9 |
Star 2=DM-25 5278 appears to have a small reddening, is a non- evolved star (beta=2.784), and is a non-member according to (1972A&AS….7..133V) |
| VDBH 246 |
Adopted cluster centre: star 54 (ref. 386). Star 50=HD 318301 is a Be star (1981A&AS…44..387M). |
| VDBH 99 |
The dereddened colour-magnitude diagram in (1990AJ….100..695L) was examined. |
