Ruprecht 126
(MWSC 2632)
0.87
UTI
0.8
CN
1.0
Cdens
1.0
CC3
0.78
Clit
1.0
Cdup
Stellar density (N50/rad)
16.6 [N/pc2]
- CN 0.8 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.78 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
Ruprecht 126 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is well-studied in the literature.
Note: This object shares a small percentage of members with a later reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999β | 263.781 | -34.315 | 0.273 | -0.494 | -3.297 | -21.586 |
| Almeida et al. | 2025 | 263.792 | -34.309 | β | β | β | β |
| Hunt & Reffert | 2024 | 263.775 | -34.325 | 0.281 | -0.519 | -3.258 | 45.33 |
| Cavallo et al. | 2024 | 263.787 | -34.318 | 0.279 | β | β | β |
| Hunt & Reffert | 2023 | 263.775 | -34.325 | 0.281 | -0.519 | -3.258 | 45.33 |
| Just et al. | 2023 | 263.745 | -34.305 | β | β | β | β |
| Dias et al. | 2021 | 263.792 | -34.309 | 0.233 | -0.444 | -3.286 | β |
| Cantat-Gaudin et al. | 2020 | 263.783 | -34.306 | 0.244 | -0.457 | -3.295 | β |
| SΓ‘nchez et al. | 2020 | 263.754 | -34.267 | β | -0.444 | -3.126 | β |
| Cantat-Gaudin & Anders | 2020 | 263.783 | -34.306 | 0.244 | -0.457 | -3.295 | β |
| Soubiran et al. | 2018 | 263.783 | -34.306 | β | β | β | -24.42 |
| Cantat-Gaudin et al. | 2018 | 263.783 | -34.306 | 0.244 | -0.457 | -3.295 | β |
| Kharchenko et al. | 2016 | 263.745 | -34.305 | β | β | β | β |
| Dias et al. | 2014 | 263.754 | -34.267 | β | -0.95 | -0.11 | β |
| Kharchenko et al. | 2013 | 263.754 | -34.305 | β | -2.47 | -1.3 | β |
| Morales et al. | 2013 | 263.754 | -34.267 | β | β | β | β |
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 | 2.83 | 3.19 | 2.07 | 239 | -0.315 | 690 | β | β |
| Almeida et al. | 2025 | 2.46 | 3.19 | β | 239 | β | 690 | β | β |
| Hunt & Reffert | 2024 | β | β | β | β | β | 3477(1) | β | β |
| Cavallo et al. | 2024 | 1.91 | 4.53 | β | 41 | -1.070 | β | β | β |
| Hunt & Reffert | 2023 | 3.20 | 4.03 | 2.07 | 48 | β | β | β | β |
| Just et al. | 2023 | β | β | β | 750 | β | 279 | β | β |
| Dias et al. | 2021 | 2.46 | 3.19 | β | 239 | 0.441 | β | β | β |
| Cantat-Gaudin et al. | 2020 | 3.28 | 3.23 | β | 100 | β | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 3.65 | β | β | β | β | β | β | β |
| Soubiran et al. | 2018 | 3.65 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 3.65 | β | β | β | β | β | β | β |
| Kharchenko et al. | 2016 | 2.33 | 2.58 | β | 750 | β | β | β | β |
| Kharchenko et al. | 2013 | 2.33 | 2.58 | β | 750 | β | β | β | β |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G227, along with UFMG_87, OC_0692 and HSC_2913.
Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.
Cavallo et al. (2024)
Silver sample.
Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.