OC 0631
0.52
UTI
0.36
CN
1.0
Cdens
0.75
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
1.0 [arcmin]
- CN 0.36 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
OC 0631 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a large* distance, near the mid-plane, affected by very high extinction. It is catalogued as a very massive, metal-rich, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.
(*): The parallax distance estimate (~6.56 kpc) differs significantly from the median photometric distance (~4.34 kpc).
Distant
Very high extinction
Very massive
Metal-rich
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 234.866 | -55.924 | 0.152 | -3.837 | -3.582 | -105.326 |
| Hunt & Reffert | 2024 | 234.854 | -55.927 | 0.166 | -3.85 | -3.576 | -112.551 |
| Cavallo et al. | 2024 | 234.85 | -55.935 | 0.167 | â | â | â |
| Hunt & Reffert | 2023 | 234.854 | -55.927 | 0.166 | -3.85 | -3.576 | -112.551 |
| Hao et al. | 2022 | 234.843 | -55.932 | 0.148 | -3.863 | -3.614 | â |
đĄ 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 6330* | â | â |
| Cavallo et al. | 2024 | 3.60 | 5.47 | â | 7 | 1.190 | â | â | â |
| Hunt & Reffert | 2023 | 5.08 | 6.32 | 2.05 | 414 | â | â | â | â |
| Hao et al. | 2022 | â | 4.85 | â | 794 | 0.223 | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Wood sample.