UBC 528
0.59
UTI
0.52
CN
0.6
Cdens
0.75
CC3
0.55
Clit
1.0
Cdup
Radius (P>50% members)
4.2 [arcmin]
- CN 0.52 Moderately populated
- Cdens 0.6 Moderately dense
- CC3 0.75 High quality
- Clit 0.55 Moderately studied
- Cdup 1.0 Unique
Overview
UBC 528 is a moderately populated, moderately dense object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.
Distant
Moderate extinction
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 | 204.634 | -61.605 | 0.287 | -4.853 | -1.786 | -31.543 |
| Li et al. | 2025 | 204.627 | -61.607 | 0.252 | -4.819 | -1.793 | â |
| Hu & Soubiran | 2025 | 204.612 | -61.609 | â | â | â | â |
| Almeida et al. | 2025 | 204.627 | -61.603 | â | â | â | â |
| Hunt & Reffert | 2024 | 204.629 | -61.621 | 0.297 | -4.864 | -1.784 | -28.235 |
| Cavallo et al. | 2024 | 204.612 | -61.609 | 0.296 | â | â | â |
| Hunt & Reffert | 2023 | 204.629 | -61.621 | 0.297 | -4.864 | -1.784 | -28.235 |
| Dias et al. | 2021 | 204.627 | -61.603 | 0.267 | -4.823 | -1.796 | -36.381 |
| Cantat-Gaudin et al. | 2020 | 204.627 | -61.607 | 0.252 | -4.819 | -1.793 | â |
| Castro-Ginard et al. | 2020 | 204.64 | -61.606 | 0.256 | -4.821 | -1.806 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Li et al. | 2025 | 2.55 | 2.47 | â | 1078 | -0.025 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.410* | â | â | â |
| Almeida et al. | 2025 | 3.47 | 2.69 | â | 466 | â | 748 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 513* | â | â |
| Cavallo et al. | 2024 | 2.30 | 2.11 | â | 1023 | 0.020 | â | â | â |
| Hunt & Reffert | 2023 | 3.18 | 2.63 | 1.41 | 288 | â | â | â | â |
| Dias et al. | 2021 | 3.47 | 2.69 | â | 466 | 0.137 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.80 | 0.83 | â | 2692 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.
Cavallo et al. (2024)
Gold sample.