UBC 259
0.70
UTI
0.73
CN
1.0
Cdens
1.0
CC3
0.38
Clit
1.0
Cdup
Radius (P>50% members)
4.7 [arcmin]
- CN 0.73 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.38 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 259 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 low extinction. It is catalogued as a 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 moderate percentage of members with a later reported entry. See table with shared members information.
Relatively close
Low 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 | 157.623 | -60.07 | 0.385 | -5.458 | 2.872 | 10.465 |
| Li et al. | 2025 | 157.621 | -60.078 | 0.377 | -5.457 | 2.859 | â |
| Hunt & Reffert | 2024 | 157.64 | -60.078 | 0.388 | -5.458 | 2.873 | 9.3 |
| Cavallo et al. | 2024 | 157.786 | -60.096 | 0.39 | â | â | â |
| Hunt & Reffert | 2023 | 157.64 | -60.078 | 0.388 | -5.458 | 2.873 | 9.3 |
| Cantat-Gaudin et al. | 2020 | 157.621 | -60.078 | 0.377 | -5.457 | 2.859 | â |
| Castro-Ginard et al. | 2020 | 157.606 | -60.081 | 0.375 | -5.453 | 2.853 | 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 | 2.54 | 0.54 | â | 213 | 0.257 | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 700* | â | â |
| Cavallo et al. | 2024 | 2.02 | 0.91 | â | 158 | -0.420 | â | â | â |
| Hunt & Reffert | 2023 | 2.33 | 0.35 | 0.98 | 125 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.38 | 0.61 | â | 102 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.