UBC 156
0.66
UTI
0.56
CN
1.0
Cdens
0.75
CC3
0.5
Clit
1.0
Cdup
Stellar density (N50/rad)
7.4 [N/pc2]
- CN 0.56 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.5 Moderately studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
UBC 156 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near 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 | 99999â | 321.727 | 49.112 | 0.433 | -3.758 | -4.414 | -36.558 |
| Li et al. | 2025 | 321.715 | 49.114 | 0.424 | -3.755 | -4.378 | â |
| Almeida et al. | 2025 | 321.743 | 49.106 | â | â | â | â |
| Zhang et al. | 2024 | 321.683 | 49.125 | â | â | â | â |
| Hunt & Reffert | 2024 | 321.683 | 49.125 | 0.435 | -3.739 | -4.393 | -36.577 |
| Cavallo et al. | 2024 | 321.748 | 49.108 | 0.434 | â | â | â |
| Hunt & Reffert | 2023 | 321.683 | 49.125 | 0.435 | -3.739 | -4.393 | -36.577 |
| Dias et al. | 2021 | 321.743 | 49.106 | 0.412 | -3.744 | -4.379 | â |
| Cantat-Gaudin et al. | 2020 | 321.715 | 49.114 | 0.424 | -3.755 | -4.378 | â |
| Castro-Ginard et al. | 2020 | 321.724 | 49.113 | 0.43 | -3.746 | -4.387 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 2.275 | 1.795 | 2.09 | 251 | 0.009 | 494 | â | â |
| Li et al. | 2025 | 2.38 | 1.64 | â | 696 | -0.019 | â | â | â |
| Almeida et al. | 2025 | 2.12 | 1.95 | â | 34 | â | 572 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.180(1) | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 416(1) | â | â |
| Cavallo et al. | 2024 | 2.78 | 1.89 | â | 251 | 0.700 | â | â | â |
| Hunt & Reffert | 2023 | 2.21 | 1.70 | 2.09 | 360 | â | â | â | â |
| Dias et al. | 2021 | 2.12 | 1.95 | â | 34 | 0.037 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.34 | 1.28 | â | 251 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.