Roslund 4

0.85 UTI

0.76

C_N

1.0

C_dens

0.75

C_C3

0.86

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 129

Radius (P>50% members) 3.6 [arcmin]

C_N 0.76 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.86 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Roslund 4 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is well-studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Roslund 4 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	301.189	29.202	0.423	-2.174	-5.11	-4.256
Hunt & Reffert	2024	301.214	29.191	0.433	-2.231	-5.17	55.191
Celli et al.	2024	301.199	29.196	–	–	–	–
Cavallo et al.	2024	301.105	29.1	0.434	–	–	–
Hunt & Reffert	2023	301.214	29.191	0.433	-2.231	-5.17	55.191
Jaehnig et al.	2021	301.212	29.188	0.46	-2.168	-5.089	–
Rain et al.	2021	301.199	29.196	0.423	-2.166	-5.057	–
Cantat-Gaudin et al.	2020	301.199	29.196	0.423	-2.166	-5.057	–
Cantat-Gaudin & Anders	2020	301.199	29.196	0.423	-2.166	-5.057	–
Cantat-Gaudin et al.	2018	301.199	29.196	0.423	-2.166	-5.057	–
Loktin & Popova	2017	301.23	29.217	–	-5.016	-5.668	-15.7
Dias et al.	2014	301.225	29.217	–	-2.9	-4.91	–
Gozha et al.	2012	301.225	29.217	–	–	–	–
Kharchenko et al.	2007	301.23	29.22	–	0.04	–	–
van den Bergh	2006	301.225	29.217	–	–	–	–
Dias et al.	2002	301.225	29.217	–	-2.9	-4.91	-15.7
Dambis	1999	301.225	29.217	–	–	–	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	Bfr	BSS
Hunt & Reffert	2024	–	–	–	–	–	918*	–	–
Celli et al.	2024	–	–	–	17	–	315	–	–
Cavallo et al.	2024	2.18	3.23	–	10	0.270	–	–	–
Hunt & Reffert	2023	2.15	3.30	2.73	10	–	–	–	–
Jaehnig et al.	2021	2.17*	–	–	–	–	–	–	–
Rain et al.	2021	2.21	2.82	–	4	–	–	–	0
Cantat-Gaudin et al.	2020	2.06	2.33	–	17	–	–	–	–
Cantat-Gaudin & Anders	2020	2.21	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.21	–	–	–	–	–	–	–
Loktin & Popova	2017	2.51	2.99	–	34	–	–	–	–
Gozha et al.	2012	2.00	–	–	4	–	–	–	–
van den Bergh	2006	2.51	3.07	–	28	–	–	–	–
Dias et al.	2002	2.00	2.82	–	4	–	–	–	–
Dambis	1999	2.19	2.83	–	16	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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