Melotte 181
(Collinder 352; VDBH 250; NGC 6451; ESO 455 50; OCL 1035; vdBergh-Hagen 250; MWSC 2718)
|
UTI:
UCC Trust Index
Melotte 181 is a very rich, very dense object of very high C3 quality. It is very well-studied in the literature. This object shares a large percentage of members with 3 later reported entries. |
||||||||||||||
| C3 | N_50 |
r_50 |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AA | 489 | 4.2 | ||||||||||||
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 267.671 | -30.21 | – | 1.32 | -1.8 | -23.0 |
| Kharchenko et al. (2012) | 267.671 | -30.2 | – | 2.7 | 1.87 | – |
| Loktin & Popova (2017) | 267.675 | -30.211 | – | -1.241 | -3.394 | -23.0 |
| Bica et al. (2019) | 267.672 | -30.208 | – | – | – | – |
| Cantat-Gaudin et al. (2020) | 267.675 | -30.206 | 0.304 | -0.105 | -1.335 | – |
| Dias et al. (2021) | 267.667 | -30.203 | 0.307 | -0.111 | -1.333 | – |
| Jaehnig et al. (2021) | 267.683 | -30.206 | 0.323 | -0.095 | -1.352 | – |
| Hunt & Reffert (2023) | 267.671 | -30.21 | 0.332 | -0.111 | -1.345 | -4.689 |
| Cavallo et al. (2024) | 267.662 | -30.203 | 0.332 | – | – | – |
| Hunt & Reffert (2024) | 267.671 | -30.21 | 0.332 | -0.111 | -1.345 | -4.689 |
| UCC | 267.675 | -30.209 | 0.33 | -0.104 | -1.344 | -7.854 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.672, Dist=2080.0, Age=8.134, [Fe/H]=-0.34 |
| Kharchenko et al. (2012) | e_bv=0.687, distance=2605, log_age=8.45, metallicity=-0.34 |
| Loktin & Popova (2017) | E(B-V)=0.67, Dmod=11.586, logt=8.137 |
| Cantat-Gaudin et al. (2020) | AVNN=2.2, DMNN=12.22, AgeNN=7.41 |
| Dias et al. (2021) | Av=2.366, Dist=2794, logage=6.925, [Fe/H]=0.457 |
| Hunt & Reffert (2023) | AV50=2.563, diffAV50=2.252, MOD50=12.128, logAge50=7.695 |
| Cavallo et al. (2024) | AV50=3.17, dMod50=11.51, logAge50=7.61, [Fe/H]50=-1.57 |
| Hunt & Reffert (2024) | MassJ=8046.97 |
Search coordinates in Bayestar19
Cluster region
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| UBC 570 | 95.1 | 267.68 | -30.21 | 0.33 | -0.11 | -1.35 | -7.85 | 0.03 |
| OC 0703 | 8.2 | 267.67 | -30.2 | 0.31 | -0.14 | -1.38 | -8.52 | 0.0 |
| OC 0702 | 0.4 | 267.67 | -30.21 | 0.52 | -0.12 | -1.11 | 8.5 | 0.23 |