UBC 139
0.64
UTI
0.7
CN
1.0
Cdens
0.75
CC3
0.38
Clit
1.0
Cdup
Radius (P>50% members)
5.5 [arcmin]
- CN 0.7 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.38 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 139 is a moderately populated, very 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 (see Parameters). It is poorly studied in the literature.
Relatively close
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 | 302.727 | 35.768 | 0.458 | -2.074 | -4.919 | -5.481 |
| Hu & Soubiran | 2025 | 302.733 | 35.76 | â | â | â | â |
| Hunt & Reffert | 2024 | 302.731 | 35.767 | 0.457 | -2.071 | -4.926 | 32.214 |
| Cavallo et al. | 2024 | 302.733 | 35.76 | 0.459 | â | â | â |
| Hunt & Reffert | 2023 | 302.731 | 35.767 | 0.457 | -2.071 | -4.926 | 32.214 |
| Cantat-Gaudin et al. | 2020 | 302.728 | 35.764 | 0.457 | -2.091 | -4.883 | â |
| Castro-Ginard et al. | 2020 | 302.726 | 35.731 | 0.457 | -2.087 | -4.895 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.180* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 474* | â | â |
| Cavallo et al. | 2024 | 1.69 | 1.21 | â | 537 | 0.000 | â | â | â |
| Hunt & Reffert | 2023 | 2.06 | 1.42 | 1.01 | 81 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.10 | 1.02 | â | 229 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.