UBC 632
0.41
UTI
0.0
CN
0.32
Cdens
0.75
CC3
0.5
Clit
1.0
Cdup
Stellar density (N50/rad)
1.6 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.32 Loose
- CC3 0.75 High quality
- Clit 0.5 Moderately studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
UBC 632 is a sparse, loose object of high C3 quality. Its parallax locates it at a moderate distance, well 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 age parameters (see Parameters). It is moderately studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 121.6 | -9.622 | 0.25 | -2.549 | 1.806 | â |
| Li et al. | 2025 | 121.59 | -9.602 | 0.264 | -2.471 | 1.729 | â |
| Hu & Soubiran | 2025 | 121.602 | -9.614 | â | â | â | â |
| Almeida et al. | 2025 | 121.589 | -9.606 | â | â | â | â |
| Hunt & Reffert | 2024 | 121.587 | -9.64 | 0.271 | -2.561 | 1.809 | â |
| Cavallo et al. | 2024 | 121.602 | -9.614 | 0.268 | â | â | â |
| Hunt & Reffert | 2023 | 121.587 | -9.64 | 0.271 | -2.561 | 1.809 | â |
| Dias et al. | 2021 | 121.589 | -9.606 | 0.315 | -2.476 | 1.721 | â |
| Cantat-Gaudin et al. | 2020 | 121.59 | -9.602 | 0.264 | -2.471 | 1.729 | â |
| Castro-Ginard et al. | 2020 | 121.598 | -9.588 | 0.274 | -2.459 | 1.747 | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 3.82 | 0.34 | 0.15 | 1199 | -0.207 | 262 | â | â |
| Li et al. | 2025 | 3.82 | 0.34 | â | 1611 | -0.234 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.180(5) | â | â | â |
| Almeida et al. | 2025 | 4.11 | 1.51 | â | 49 | â | 355 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 169(1) | â | â |
| Cavallo et al. | 2024 | 2.79 | 0.13 | â | 2042 | -0.130 | â | â | â |
| Hunt & Reffert | 2023 | 3.45 | 0.04 | 0.15 | 1199 | â | â | â | â |
| Dias et al. | 2021 | 4.11 | 1.51 | â | 49 | -0.254 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit.