Melotte 48
(Collinder 108; NGC 2259; MWSC 940; OCL 492; FoF 370)
Summary
Melotte 48 is a rich, very dense object of high C3 quality. It is located at a moderate distance from the Sun, above the mid-plane. It is very well-studied in the literature.
This object shares a small percentage of members with 2 later reported entries.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 99.588 | 10.883 | – | 2.79 | -0.96 | – |
| Chen et al. (2003) | 99.582 | 10.883 | – | – | – | – |
| Kharchenko et al. (2013) | 99.633 | 10.875 | – | 2.66 | -2.38 | – |
| Kharchenko et al. (2016) | 99.625 | 10.876 | – | – | – | – |
| Loktin & Popova (2017) | 99.63 | 10.884 | – | 0.877 | -0.715 | – |
| Cantat-Gaudin et al. (2018) | 99.633 | 10.885 | 0.326 | -0.273 | -1.032 | – |
| Bica et al. (2019) | 99.637 | 10.888 | – | – | – | – |
| Soubiran et al. (2018) | 99.633 | 10.885 | – | – | – | 65.86 |
| Liu & Pang (2019) | 99.632 | 10.889 | 0.328 | -0.257 | -1.045 | – |
| Cantat-Gaudin et al. (2020) | 99.633 | 10.885 | 0.326 | -0.273 | -1.032 | – |
| Dias et al. (2021) | 99.621 | 10.886 | 0.308 | -0.266 | -1.062 | – |
| Rain et al. (2021) | 99.633 | 10.885 | 0.326 | -0.273 | -1.032 | – |
| Jaehnig et al. (2021) | 99.638 | 10.876 | 0.376 | -0.245 | -1.128 | – |
| Just et al. (2023) | 99.625 | 10.876 | – | – | – | – |
| Hunt & Reffert (2023) | 99.639 | 10.881 | 0.31 | -0.237 | -1.086 | 80.409 |
| Cavallo et al. (2024) | 99.633 | 10.884 | 0.309 | – | – | – |
| Hunt & Reffert (2024) | 99.639 | 10.881 | 0.31 | -0.237 | -1.086 | 80.409 |
| Zhang et al. (2024) | 99.639 | 10.881 | – | – | – | – |
| Almeida et al. (2025) | 99.621 | 10.886 | – | – | – | – |
| Hu & Soubiran (2025) | 99.633 | 10.884 | – | – | – | – |
| UCC | 99.637 | 10.884 | 0.328 | -0.231 | -1.097 | 64.761 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.59, Dist=3311.0, Age=8.5, [Fe/H]=0.07 |
| Chen et al. (2003) | E(B-V)=0.59, HDis=3311, Age=0.32, [Fe/H]_1=0.07 |
| Kharchenko et al. (2013) | E(B-V)=0.687, d=3060.0, logt=8.625, [Fe/H]=0.07 |
| Kharchenko et al. (2016) | E(B-V)=0.687, d=3060.0, logt=8.625 |
| Loktin & Popova (2017) | E(B-V)=0.474, Dist=2188, logt=8.221 |
| Cantat-Gaudin et al. (2018) | dmode=2818.7 |
| Soubiran et al. (2018) | dmode=2818.7 |
| Liu & Pang (2019) | Age=0.603, Z=0.5 |
| Cantat-Gaudin et al. (2020) | AVNN=1.52, DistPc=3005.0, AgeNN=8.44 |
| Dias et al. (2021) | Av=1.847, Dist=2342, logage=8.527, [Fe/H]=-0.152 |
| Rain et al. (2021) | E(B-V)=0.59, Dist=2818.7, log(Age)=8.5, NBSS=4 |
| Jaehnig et al. (2021) | dmode=2.684 |
| Just et al. (2023) | logt=8.625, logmt=3.078 |
| Hunt & Reffert (2023) | AV50=1.661, diffAV50=1.179, MOD50=12.221, logAge50=8.544 |
| Cavallo et al. (2024) | AV50=1.6, dMod50=12.06, logAge50=8.78, [Fe/H]50=0.35 |
| Hunt & Reffert (2024) | MassJ=1114.41, MassTot=1114.41 |
| Zhang et al. (2024) | [Fe/H]ANN=0.23674, [Fe/H]MCMC=0.26426 |
| Almeida et al. (2025) | AV=1.847, Dist=2342, logAge=8.527, MassRk=645.1 |
| Hu & Soubiran (2025) | MA22=-0.24, MA23f=-0.42, MK24=-0.28, MF24=-0.49 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| OC 0334 | 15.5 | 99.64 | 10.88 | 0.34 | -0.2 | -1.09 | – | 0.0 |
| OC 0335 | 14.9 | 99.65 | 10.88 | 0.41 | -0.2 | -0.98 | 64.76 | 0.01 |