Ruprecht 37
(Berkeley 40; MWSC 1353; OCL 615)
0.91
UTI
0.82
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
Radius (P>50% members)
3.3 [arcmin]
- CN 0.82 Rich
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 1.0 Very well-studied
- Cdup 1.0 Unique
Overview
Ruprecht 37 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is very well-studied in the literature.
Distant
Low extinction
Near-solar metallicity
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | β | 117.451 | -17.249 | 0.181 | -1.694 | 2.41 | 86.65 |
| Li et al. | 2025 | 117.452 | -17.249 | 0.195 | -1.7 | 2.417 | β |
| Hu & Soubiran | 2025 | 117.45 | -17.25 | β | β | β | β |
| Almeida et al. | 2025 | 117.455 | -17.255 | β | β | β | β |
| Hunt & Reffert | 2024 | 117.45 | -17.248 | 0.178 | -1.682 | 2.404 | 85.937 |
| Cavallo et al. | 2024 | 117.45 | -17.25 | 0.182 | β | β | β |
| Hunt & Reffert | 2023 | 117.45 | -17.248 | 0.178 | -1.682 | 2.404 | 85.937 |
| Just et al. | 2023 | 117.459 | -17.222 | β | β | β | β |
| Dias et al. | 2021 | 117.455 | -17.255 | 0.209 | -1.708 | 2.418 | β |
| Cantat-Gaudin et al. | 2020 | 117.452 | -17.249 | 0.195 | -1.7 | 2.417 | β |
| SΓ‘nchez et al. | 2020 | 117.45 | -17.246 | β | -1.622 | 2.37 | β |
| Cantat-Gaudin & Anders | 2020 | 117.452 | -17.249 | 0.195 | -1.7 | 2.417 | β |
| Bica et al. | 2019 | 117.444 | -17.25 | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 117.452 | -17.249 | 0.195 | -1.7 | 2.417 | β |
| Kharchenko et al. | 2016 | 117.459 | -17.222 | β | β | β | β |
| Dias et al. | 2014 | 117.45 | -17.246 | β | -2.32 | -0.89 | β |
| Kharchenko et al. | 2013 | 117.465 | -17.225 | β | -0.6 | 4.05 | β |
| Dias et al. | 2002 | 117.45 | -17.246 | β | -0.6 | 4.05 | 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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Li et al. | 2025 | 4.96 | 0.43 | β | 2522 | -0.042 | β | β | β |
| Hu & Soubiran | 2025 | β | β | β | β | -0.270* | β | β | β |
| Almeida et al. | 2025 | 4.81 | 0.41 | β | 3055 | β | 595 | β | β |
| Hunt & Reffert | 2024 | β | β | β | β | β | 665* | β | β |
| Cavallo et al. | 2024 | 3.55 | 1.01 | β | 3388 | -0.780 | β | β | β |
| Hunt & Reffert | 2023 | 4.70 | 0.23 | 1.12 | 1648 | β | β | β | β |
| Just et al. | 2023 | β | β | β | 1995 | β | 1667 | β | β |
| Dias et al. | 2021 | 4.81 | 0.41 | β | 3055 | -0.136 | β | β | β |
| Cantat-Gaudin et al. | 2020 | 4.53 | 0.30 | β | 2239 | β | β | β | β |
| Cantat-Gaudin & Anders | 2020 | 4.46 | β | β | β | β | β | β | β |
| Cantat-Gaudin et al. | 2018 | 4.46 | β | β | β | β | β | β | β |
| Kharchenko et al. | 2016 | 5.25 | 0.00 | β | 1995 | β | β | β | β |
| Kharchenko et al. | 2013 | 5.25 | 0.00 | β | 1995 | β | β | β | β |
| Dias et al. | 2002 | 5.25 | 0.00 | β | 3020 | β | β | β | β |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit.
Cavallo et al. (2024)
Gold sample.