UBC 548
0.62
UTI
0.47
CN
1.0
Cdens
0.75
CC3
0.44
Clit
1.0
Cdup
Radius (P>50% members)
2.9 [arcmin]
- CN 0.47 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.44 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 548 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.
Relatively close
High 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 | 250.342 | -46.088 | 0.41 | -2.087 | -3.887 | -13.374 |
| Almeida et al. | 2025 | 250.395 | -46.1 | â | â | â | â |
| Hunt & Reffert | 2024 | 250.338 | -46.09 | 0.407 | -2.135 | -3.917 | -23.383 |
| Cavallo et al. | 2024 | 250.403 | -46.112 | 0.41 | â | â | â |
| Hunt & Reffert | 2023 | 250.338 | -46.09 | 0.407 | -2.135 | -3.917 | -23.383 |
| Dias et al. | 2021 | 250.395 | -46.1 | 0.393 | -2.157 | -3.859 | -23.242 |
| Cantat-Gaudin et al. | 2020 | 250.353 | -46.11 | 0.407 | -2.116 | -3.884 | â |
| Castro-Ginard et al. | 2020 | 250.374 | -46.109 | 0.4 | -2.113 | -3.879 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Almeida et al. | 2025 | 2.50 | 3.07 | â | 14 | â | 981 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 972* | â | â |
| Cavallo et al. | 2024 | 1.74 | 3.28 | â | 457 | -0.070 | â | â | â |
| Hunt & Reffert | 2023 | 2.22 | 2.99 | 2.70 | 166 | â | â | â | â |
| Dias et al. | 2021 | 2.50 | 3.07 | â | 14 | 0.127 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.38 | 2.27 | â | 417 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.
Cavallo et al. (2024)
Gold sample.