UBC 154
0.72
UTI
0.49
CN
1.0
Cdens
1.0
CC3
0.55
Clit
1.0
Cdup
Radius (P>50% members)
2.2 [arcmin]
- CN 0.49 Poorly populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.55 Moderately studied
- Cdup 1.0 Unique
Overview
UBC 154 is a poorly populated, 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 near-solar metallicity, intermediate-age cluster (see Parameters). It is moderately studied in the literature.
Distant
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 | 317.085 | 46.335 | 0.269 | -2.272 | -3.764 | -43.389 |
| Li et al. | 2025 | 317.093 | 46.334 | 0.265 | -2.294 | -3.725 | â |
| Almeida et al. | 2025 | 317.1 | 46.321 | â | â | â | â |
| Hunt & Reffert | 2024 | 317.101 | 46.336 | 0.273 | -2.279 | -3.778 | -43.728 |
| Cavallo et al. | 2024 | 317.087 | 46.337 | 0.271 | â | â | â |
| Hunt & Reffert | 2023 | 317.101 | 46.336 | 0.273 | -2.279 | -3.778 | -43.728 |
| Almeida et al. | 2023 | 317.095 | 46.325 | â | â | â | â |
| Dias et al. | 2021 | 317.1 | 46.321 | 0.255 | -2.306 | -3.695 | -35.36 |
| Cantat-Gaudin et al. | 2020 | 317.093 | 46.334 | 0.265 | -2.294 | -3.725 | â |
| Castro-Ginard et al. | 2020 | 317.098 | 46.334 | 0.26 | -2.296 | -3.709 | 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 | 3.35 | 1.55 | â | 641 | 0.188 | â | â | â |
| Almeida et al. | 2025 | 3.08 | 1.80 | â | 618 | â | 771 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 566* | â | â |
| Cavallo et al. | 2024 | 3.36 | 2.14 | â | 331 | 0.010 | â | â | â |
| Hunt & Reffert | 2023 | 3.27 | 1.55 | 1.31 | 431 | â | â | â | â |
| Almeida et al. | 2023 | 2.94 | 1.73 | â | 681 | -0.005 | 536* | 0.56 | â |
| Dias et al. | 2021 | 3.08 | 1.80 | â | 618 | -0.031 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.33 | 1.49 | â | 537 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit. Silver sample.
Cavallo et al. (2024)
Gold sample.