Melotte 27
(Collinder 56; NGC 1664; OCL 411; MWSC 430; FoF 1365)
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UTI:
UCC Trust Index
Melotte 27 is a very rich, very dense object of high C3 quality. It is very well-studied in the literature. |
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| C3 | N_50 |
r_50 |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AB | 634 | 9.2 | ||||||||||||
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 72.775 | 43.675 | – | 1.96 | -5.1 | 7.5 |
| Chen et al. (2003) | 72.738 | 43.623 | – | 1.96 | -5.1 | 7.8 |
| Kharchenko et al. (2012) | 72.808 | 43.66 | – | -4.23 | -4.2 | – |
| Loktin & Popova (2017) | 72.78 | 43.676 | – | -4.594 | -3.24 | 36.1 |
| Bica et al. (2019) | 72.775 | 43.684 | – | – | – | – |
| Bossini et al. (2019) | 72.763 | 43.676 | – | – | – | – |
| Liu & Pang (2019) | 72.765 | 43.674 | 0.737 | 1.733 | -5.701 | – |
| Cantat-Gaudin et al. (2020) | 72.763 | 43.676 | 0.734 | 1.703 | -5.738 | – |
| Donor et al. (2020) | 72.808 | 43.66 | – | 1.84 | -5.76 | 7.0 |
| Dias et al. (2021) | 72.754 | 43.674 | 0.733 | 1.727 | -5.72 | 6.308 |
| Jaehnig et al. (2021) | 72.755 | 43.676 | 0.76 | 1.695 | -5.715 | – |
| Tarricq et al. (2022) | 72.769 | 43.685 | 0.749 | 1.615 | -5.799 | – |
| Hunt & Reffert (2023) | 72.766 | 43.675 | 0.736 | 1.608 | -5.803 | 4.112 |
| Cavallo et al. (2024) | 72.755 | 43.677 | 0.734 | – | – | – |
| Hunt & Reffert (2024) | 72.766 | 43.675 | 0.736 | 1.608 | -5.803 | 4.112 |
| Hu & Soubiran (2025) | 72.755 | 43.677 | – | – | – | – |
| UCC | 72.755 | 43.666 | 0.738 | 1.607 | -5.788 | 2.289 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.254, Dist=1199.0, Age=8.465 |
| Chen et al. (2003) | HDis=1199, Age=0.29 |
| Kharchenko et al. (2012) | e_bv=0.25, distance=1200, log_age=8.75 |
| Loktin & Popova (2017) | E(B-V)=0.258, Dmod=10.474, logt=8.461 |
| Bossini et al. (2019) | AV=0.708, Dist=10.626, logA=8.673, Fe/H=0.0 |
| Liu & Pang (2019) | Age=0.372, Z=0.25 |
| Cantat-Gaudin et al. (2020) | AVNN=0.69, DMNN=10.64, AgeNN=8.71 |
| Donor et al. (2020) | Fe/H=-0.03 |
| Dias et al. (2021) | Av=0.87, Dist=1218, logage=8.808, [Fe/H]=-0.009 |
| Tarricq et al. (2022) | Dist=1302, logAgeNN=8.72 |
| Hunt & Reffert (2023) | AV50=0.716, diffAV50=0.52, MOD50=10.515, logAge50=8.532 |
| Cavallo et al. (2024) | AV50=0.72, dMod50=10.69, logAge50=8.82, [Fe/H]50=0.37 |
| Hunt & Reffert (2024) | MassJ=1821.99 |
| Hu & Soubiran (2025) | MA22=-0.11, MA23f=-0.17, MA23g=-0.02, MZ23=-0.03, MK24=-0.1, MF24=-0.08 |
Search coordinates in Bayestar19