UBC 92
0.71
UTI
0.81
CN
1.0
Cdens
1.0
CC3
0.38
Clit
1.0
Cdup
Radius (P>50% members)
4.5 [arcmin]
- CN 0.81 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.38 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 92 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, metal-poor, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is poorly studied in the literature.
Note: This object shares a moderate percentage of members with 2 later reported entries. See table with shared members information.
Relatively close
Moderate extinction
Massive
Metal-poor
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 269.872 | -26.66 | 0.402 | 2.112 | 0.408 | -10.229 |
| Li et al. | 2025 | 269.883 | -26.655 | 0.37 | 2.116 | 0.406 | â |
| Hunt & Reffert | 2024 | 269.874 | -26.655 | 0.411 | 2.088 | 0.395 | -3.582 |
| Cavallo et al. | 2024 | 269.867 | -26.666 | 0.412 | â | â | â |
| Hunt & Reffert | 2023 | 269.874 | -26.655 | 0.411 | 2.088 | 0.395 | -3.582 |
| Cantat-Gaudin et al. | 2020 | 269.883 | -26.655 | 0.37 | 2.116 | 0.406 | â |
| Castro-Ginard et al. | 2020 | 269.884 | -26.655 | 0.375 | 2.125 | 0.406 | 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 | 1.95 | 2.66 | â | 535 | 0.073 | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 3447* | â | â |
| Cavallo et al. | 2024 | 1.34 | 3.79 | â | 138 | -1.610 | â | â | â |
| Hunt & Reffert | 2023 | 2.23 | 3.05 | 2.63 | 154 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.37 | 2.28 | â | 302 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.