UBC 537
0.70
UTI
0.76
CN
1.0
Cdens
1.0
CC3
0.38
Clit
1.0
Cdup
Radius (P>50% members)
2.7 [arcmin]
- CN 0.76 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.38 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 537 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.
Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.
Relatively close
Moderate extinction
Massive
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 242.894 | -53.038 | 0.301 | -2.485 | -2.017 | -64.747 |
| Hu & Soubiran | 2025 | 242.902 | -53.047 | â | â | â | â |
| Hunt & Reffert | 2024 | 242.886 | -53.039 | 0.308 | -2.502 | -2.026 | -56.465 |
| Cavallo et al. | 2024 | 242.902 | -53.047 | 0.307 | â | â | â |
| Hunt & Reffert | 2023 | 242.886 | -53.039 | 0.308 | -2.502 | -2.026 | -56.465 |
| Cantat-Gaudin et al. | 2020 | 242.896 | -53.037 | 0.29 | -2.435 | -2.018 | â |
| Castro-Ginard et al. | 2020 | 242.91 | -53.044 | 0.292 | -2.432 | -2.022 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.080* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 1601* | â | â |
| Cavallo et al. | 2024 | 1.85 | 2.97 | â | 794 | -0.420 | â | â | â |
| Hunt & Reffert | 2023 | 2.91 | 2.93 | 1.94 | 234 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.31 | 0.69 | â | 2188 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.