Melotte 78
(Collinder 165; VDBH 13; NGC 2477; ESO 311 17; FSR 1369; OCL 720; vdBergh-Hagen 13; MWSC 1363; FoF 35)
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UTI:
UCC Trust Index
Melotte 78 is a very rich, very dense object of very high C3 quality. It is very well-studied in the literature. This object shares a very small percentage of members with a later reported entry. |
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| C3 | N_50 |
r_50 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AA | 3687 | 10.5 | ||||||||||||
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 118.042 | -38.53 | – | -0.58 | 1.81 | 7.26 |
| Chen et al. (2003) | 118.067 | -38.549 | – | – | – | – |
| Kharchenko et al. (2012) | 118.035 | -38.53 | – | -0.5 | 2.0 | – |
| Loktin & Popova (2017) | 118.035 | -38.53 | – | -4.247 | 6.721 | 7.3 |
| Bica et al. (2019) | 118.048 | -38.523 | – | – | – | – |
| Liu & Pang (2019) | 118.054 | -38.543 | 0.672 | -2.442 | 0.866 | – |
| Cantat-Gaudin et al. (2020) | 118.046 | -38.537 | 0.665 | -2.449 | 0.87 | – |
| Dias et al. (2021) | 118.044 | -38.537 | 0.667 | -2.455 | 0.866 | 8.713 |
| Jaehnig et al. (2021) | 118.042 | -38.539 | 0.694 | -2.457 | 0.874 | – |
| Tarricq et al. (2022) | 118.055 | -38.535 | 0.687 | -2.428 | 0.901 | – |
| Hunt & Reffert (2023) | 118.045 | -38.534 | 0.692 | -2.427 | 0.908 | 7.926 |
| Cavallo et al. (2024) | 118.049 | -38.54 | 0.691 | – | – | – |
| Hunt & Reffert (2024) | 118.045 | -38.534 | 0.692 | -2.427 | 0.908 | 7.926 |
| Hu & Soubiran (2025) | 118.049 | -38.54 | – | – | – | – |
| UCC | 118.049 | -38.539 | 0.689 | -2.43 | 0.899 | 7.515 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.31, Dist=1341.0, Age=8.85, [Fe/H]=0.07 |
| Chen et al. (2003) | E(B-V)=0.279, HDis=1222, Age=0.7, [Fe/H]_1=0.01 |
| Kharchenko et al. (2012) | e_bv=0.291, distance=1450, log_age=8.915, metallicity=-0.192 |
| Loktin & Popova (2017) | E(B-V)=0.277, Dmod=10.531, logt=8.85 |
| Liu & Pang (2019) | Age=2.24, Z=-0.75 |
| Cantat-Gaudin et al. (2020) | AVNN=0.68, DMNN=10.8, AgeNN=9.05 |
| Dias et al. (2021) | Av=1.19, Dist=1351, logage=8.973, [Fe/H]=0.075 |
| Tarricq et al. (2022) | Dist=1415, logAgeNN=9.05 |
| Hunt & Reffert (2023) | AV50=1.054, diffAV50=1.225, MOD50=10.699, logAge50=8.846 |
| Cavallo et al. (2024) | AV50=1.27, dMod50=10.8, logAge50=8.9, [Fe/H]50=0.22 |
| Hunt & Reffert (2024) | MassJ=12080.4 |
| Hu & Soubiran (2025) | MA22=-0.08, MA23f=-0.14, MA23g=0.02, MZ23=-0.12, MK24=-0.14, MF24=-0.1 |
Search coordinates in Bayestar19
Cluster region
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| OC 0443 | 1.0 | 118.29 | -38.89 | 0.69 | -2.39 | 0.9 | 12.0 | 0.09 |