UBC 636
0.34
UTI
0.0
CN
0.31
Cdens
0.38
CC3
0.5
Clit
1.0
Cdup
Stellar density (N50/rad)
1.6 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.31 Loose
- CC3 0.38 Low 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 636 is a sparse, loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (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 | 118.853 | -24.31 | 0.324 | -1.972 | 1.827 | 56.432 |
| Li et al. | 2025 | 118.829 | -24.32 | 0.324 | -1.957 | 1.838 | â |
| Almeida et al. | 2025 | 118.826 | -24.339 | â | â | â | â |
| Hunt & Reffert | 2024 | 118.823 | -24.301 | 0.321 | -1.936 | 1.836 | 56.435 |
| Cavallo et al. | 2024 | 118.839 | -24.303 | 0.326 | â | â | â |
| Hunt & Reffert | 2023 | 118.823 | -24.301 | 0.321 | -1.936 | 1.836 | 56.435 |
| Almeida et al. | 2023 | 118.826 | -24.336 | â | â | â | â |
| Dias et al. | 2021 | 118.826 | -24.339 | 0.3 | -1.964 | 1.83 | â |
| Cantat-Gaudin et al. | 2020 | 118.829 | -24.32 | 0.324 | -1.957 | 1.838 | â |
| Castro-Ginard et al. | 2020 | 118.832 | -24.34 | 0.324 | -1.953 | 1.831 | 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 | 2.89 | 0.66 | 0.61 | 445 | -0.009 | 193 | 0.6 | â |
| Li et al. | 2025 | 2.89 | 0.56 | â | 549 | 0.060 | â | â | â |
| Almeida et al. | 2025 | 3.00 | 1.22 | â | 48 | â | 202 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 114(1) | â | â |
| Cavallo et al. | 2024 | 2.47 | 0.77 | â | 468 | 0.040 | â | â | â |
| Hunt & Reffert | 2023 | 2.90 | 0.45 | 0.61 | 445 | â | â | â | â |
| Almeida et al. | 2023 | 2.70 | 0.59 | â | 678 | -0.058 | 193(1) | 0.60 | â |
| Dias et al. | 2021 | 3.00 | 1.22 | â | 48 | -0.059 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.86 | 0.66 | â | 178 | â | 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: good fit.