Melotte 131
(Collinder 290; VDBH 169; NGC 5823; MWSC 2273; OCL 936; vdBergh-Hagen 169; ESO 176 11; FoF 432)
1.0
UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
Stellar density (N50/rad)
55.4 [N/pc2]
- CN 1.0 Very rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 1.0 Very well-studied
- Cdup 1.0 Unique
π₯ Members
π Colab
π¬ Bayestar19
MOCA
π CDS
π Simbad
π CDS (Ξ±, Ξ΄)
π Simbad (Ξ±, Ξ΄)
MOCA
π CDS
π Simbad
π CDS (Ξ±, Ξ΄)
π Simbad (Ξ±, Ξ΄)
Overview
Melotte 131 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption, age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999β | 226.371 | -55.609 | 0.539 | -3.715 | -2.411 | -47.882 |
| Li et al. | 2025 | 226.365 | -55.608 | 0.521 | -3.691 | -2.443 | β |
| Wei et al. | 2025 | 226.365 | -55.612 | 0.544 | -3.713 | -2.398 | β |
| Almeida et al. | 2025 | 226.372 | -55.611 | β | β | β | β |
| Hunt & Reffert | 2024 | 226.376 | -55.605 | 0.542 | -3.717 | -2.414 | -45.345 |
| Cavallo et al. | 2024 | 226.375 | -55.618 | 0.541 | β | β | β |
| Hunt & Reffert | 2023 | 226.376 | -55.605 | 0.542 | -3.717 | -2.414 | -45.345 |
| Just et al. | 2023 | 226.368 | -55.593 | β | β | β | β |
| Jaehnig et al. | 2021 | 226.362 | -55.607 | 0.552 | -3.682 | -2.447 | β |
| Rain et al. | 2021 | 226.365 | -55.608 | 0.521 | -3.691 | -2.443 | β |
| Dias et al. | 2021 | 226.372 | -55.611 | 0.522 | -3.689 | -2.441 | -56.627 |
| Cantat-Gaudin et al. | 2020 | 226.365 | -55.608 | 0.521 | -3.691 | -2.443 | β |
| SΓ‘nchez et al. | 2020 | 226.375 | -55.603 | β | -3.788 | -2.504 | β |
| Cantat-Gaudin & Anders | 2020 | 226.365 | -55.608 | 0.521 | -3.691 | -2.443 | β |
| Liu & Pang | 2019 | 226.362 | -55.608 | 0.518 | -3.676 | -2.454 | β |
| Soubiran et al. | 2018 | 226.365 | -55.608 | β | β | β | -47.32 |
| Bica et al. | 2019 | 226.377 | -55.615 | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 226.365 | -55.608 | 0.521 | -3.691 | -2.443 | β |
| Loktin & Popova | 2017 | 226.38 | -55.603 | β | -3.712 | -3.055 | -19.8 |
| Kharchenko et al. | 2016 | 226.368 | -55.593 | β | β | β | β |
| Dias et al. | 2014 | 226.375 | -55.603 | β | -5.63 | -1.57 | β |
| Kharchenko et al. | 2013 | 226.38 | -55.595 | β | -4.7 | -3.0 | -19.8 |
| Gozha et al. | 2012 | 226.375 | -55.603 | β | β | β | β |
| Piskunov et al. | 2008 | 226.359 | -55.597 | β | β | β | β |
| Kharchenko et al. | 2007 | 226.38 | -55.6 | β | 0.13 | β | β |
| van den Bergh | 2006 | 226.437 | -55.625 | β | β | β | β |
| Kharchenko et al. | 2005 | 226.38 | -55.6 | β | -6.15 | -3.53 | β |
| Kharchenko et al. | 2003 | 226.41 | -55.62 | β | -4.79 | -3.51 | β |
| Chen et al. | 2003 | 226.456 | -55.532 | β | -5.07 | 1.79 | -19.8 |
| Dias et al. | 2002 | 226.375 | -55.603 | β | -5.63 | -1.57 | -19.27 |
π‘ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999β | 1.43 | 0.32 | 1.5 | 790 | 0.140 | 1717 | 0.51 | 0.0 |
| Li et al. | 2025 | 1.60 | 1.63 | β | 379 | -0.045 | β | β | β |
| Wei et al. | 2025 | 3.91 | 2.23 | β | 148 | 0.250 | 2457 | 0.51 | β |
| Almeida et al. | 2025 | 1.43 | 1.01 | β | 710 | β | 1717 | β | β |
| Hunt & Reffert | 2024 | β | β | β | β | β | 3661(1) | β | β |
| Cavallo et al. | 2024 | 1.65 | 1.91 | β | 148 | 0.140 | β | β | β |
| Hunt & Reffert | 2023 | 1.72 | 1.80 | 1.50 | 102 | β | β | β | β |
| Just et al. | 2023 | β | β | β | 912 | β | 16 | β | β |
| Jaehnig et al. | 2021 | 1.81(1) | β | β | β | β | β | β | β |
| Rain et al. | 2021 | 1.82 | 0.28 | β | 794 | β | β | β | 0 |
| Dias et al. | 2021 | 1.43 | 1.01 | β | 710 | 0.355 | β | β | β |
| Cantat-Gaudin et al. | 2020 | 1.91 | 1.75 | β | 79 | β | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 1.82 | β | β | β | β | β | β | β |
| Liu & Pang | 2019 | β | β | β | 102 | 0.000 | β | β | β |
| Soubiran et al. | 2018 | 1.82 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 1.82 | β | β | β | β | β | β | β |
| Loktin & Popova | 2017 | 1.22 | 0.31 | β | 782 | β | β | β | β |
| Kharchenko et al. | 2016 | 1.19 | 0.32 | β | 912 | β | β | β | β |
| Kharchenko et al. | 2013 | 1.19 | 0.32 | β | 912 | β | β | β | β |
| Gozha et al. | 2012 | 1.19 | β | β | 794 | β | 110 | β | β |
| Piskunov et al. | 2008 | 1.19 | 0.28 | β | 794 | β | β | β | β |
| van den Bergh | 2006 | 1.19 | 0.28 | β | 794 | β | β | β | β |
| Kharchenko et al. | 2005 | 1.19 | 0.28 | β | 794 | β | β | β | β |
| Kharchenko et al. | 2003 | 1.19 | 0.28 | β | β | β | β | β | β |
| Chen et al. | 2003 | 1.19 | β | β | 790 | β | β | β | β |
| Dias et al. | 2002 | 1.19 | 0.28 | β | 794 | β | β | β | β |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit. Silver sample.
Cavallo et al. (2024)
Gold sample.