UBC 589
0.69
UTI
0.7
CN
1.0
Cdens
1.0
CC3
0.38
Clit
1.0
Cdup
Radius (P>50% members)
2.4 [arcmin]
- CN 0.7 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.38 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 589 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high 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.
Distant
High 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 | 316.916 | 45.308 | 0.206 | -3.129 | -3.895 | -54.097 |
| Li et al. | 2025 | 316.931 | 45.316 | 0.203 | -3.149 | -3.87 | â |
| Hunt & Reffert | 2024 | 316.909 | 45.305 | 0.203 | -3.14 | -3.899 | -71.542 |
| Cavallo et al. | 2024 | 316.933 | 45.306 | 0.204 | â | â | â |
| Hunt & Reffert | 2023 | 316.909 | 45.305 | 0.203 | -3.14 | -3.899 | -71.542 |
| Cantat-Gaudin et al. | 2020 | 316.931 | 45.316 | 0.203 | -3.149 | -3.87 | â |
| Castro-Ginard et al. | 2020 | 316.934 | 45.321 | 0.201 | -3.169 | -3.888 | 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 | 2.95 | 2.72 | â | 497 | -0.169 | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 1473* | â | â |
| Cavallo et al. | 2024 | 4.02 | 3.02 | â | 234 | 0.250 | â | â | â |
| Hunt & Reffert | 2023 | 4.59 | 3.09 | 2.15 | 88 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.