Mamajek 2
(mu Oph Cluster; MWSC 2650)
Summary
Mamajek 2 is a rich, very dense object of high C3 quality. It is located at a very close distance from the Sun, above the mid-plane. It is moderately studied in the literature.
This object shares a large percentage of members with 2 later reported entries.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 264.5 | -8.112 | – | -11.88 | -20.81 | -18.5 |
| Loktin & Popova (2017) | 264.495 | -8.113 | – | -0.956 | -1.369 | -18.5 |
| Bica et al. (2019) | 264.501 | -8.107 | – | – | – | – |
| He et al. (2022) | 264.347 | -8.014 | 5.118 | -11.05 | -20.922 | – |
| Hunt & Reffert (2023) | 264.36 | -8.016 | 4.879 | -10.069 | -19.5 | -16.534 |
| Cavallo et al. (2024) | 265.835 | -6.227 | 4.877 | – | – | – |
| Hunt & Reffert (2024) | 264.36 | -8.016 | 4.879 | -10.069 | -19.5 | -16.534 |
| UCC | 264.462 | -7.925 | 5.046 | -10.846 | -20.718 | -17.901 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.8, Dist=161.0, Age=8.1 |
| Loktin & Popova (2017) | E(B-V)=0.583, Dist=368, logt=8.323 |
| He et al. (2022) | A0=1.0, logAge=7.85 |
| Hunt & Reffert (2023) | AV50=0.746, diffAV50=1.768, MOD50=6.581, logAge50=7.994 |
| Cavallo et al. (2024) | AV50=1.08, dMod50=6.61, logAge50=7.87, [Fe/H]50=0.23 |
| Hunt & Reffert (2024) | MassJ=90.5563, MassTot=205.711 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| OCSN 216 | 100.0 | 264.46 | -7.88 | 5.05 | -10.8 | -20.7 | -17.9 | 0.04 |
| CWWDL 14696 | 30.9 | 264.35 | -7.95 | 5.11 | -11.13 | -20.88 | -17.8 | 0.0 |