UBC 85
0.57
UTI
0.6
CN
0.39
Cdens
0.75
CC3
0.55
Clit
1.0
Cdup
Radius (P>50% members)
6.9 [arcmin]
- CN 0.6 Moderately populated
- Cdens 0.39 Loose
- CC3 0.75 High quality
- Clit 0.55 Moderately studied
- Cdup 1.0 Unique
Overview
UBC 85 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, below 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 18.65 | 57.802 | 0.335 | -3.65 | -0.658 | -42.362 |
| Li et al. | 2025 | 18.644 | 57.816 | 0.361 | -3.697 | -0.615 | â |
| Almeida et al. | 2025 | 18.684 | 57.848 | â | â | â | â |
| Hunt & Reffert | 2024 | 18.585 | 57.799 | 0.337 | -3.633 | -0.658 | -55.625 |
| Cavallo et al. | 2024 | 18.935 | 57.795 | 0.344 | â | â | â |
| Hunt & Reffert | 2023 | 18.585 | 57.799 | 0.337 | -3.633 | -0.658 | -55.625 |
| Dias et al. | 2021 | 18.684 | 57.848 | 0.345 | -3.668 | -0.589 | â |
| Cantat-Gaudin et al. | 2020 | 18.644 | 57.816 | 0.361 | -3.697 | -0.615 | â |
| Cantat-Gaudin & Anders | 2020 | 18.644 | 57.816 | 0.361 | -3.697 | -0.615 | â |
| Castro-Ginard et al. | 2019 | 18.682 | 57.861 | 0.36 | -3.692 | -0.54 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Li et al. | 2025 | 2.17 | 1.23 | â | 489 | -0.281 | â | â | â |
| Almeida et al. | 2025 | 2.25 | 1.49 | â | 170 | â | 230 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 142* | â | â |
| Cavallo et al. | 2024 | 2.68 | 1.54 | â | 138 | 0.110 | â | â | â |
| Hunt & Reffert | 2023 | 2.54 | 1.22 | 0.52 | 116 | â | â | â | â |
| Dias et al. | 2021 | 2.25 | 1.49 | â | 170 | -0.181 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.61 | 1.10 | â | 85 | â | â | â | â |
| Cantat-Gaudin & Anders | 2020 | 2.56 | â | â | â | 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. Silver sample.
Cavallo et al. (2024)
Gold sample.