UBC 546
0.75
UTI
0.76
CN
1.0
Cdens
1.0
CC3
0.5
Clit
1.0
Cdup
Radius (P>50% members)
7.4 [arcmin]
- CN 0.76 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.5 Moderately studied
- Cdup 1.0 Unique
Overview
UBC 546 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, below 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.
Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.
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 | 253.691 | -48.453 | 0.509 | -1.26 | -2.701 | -47.945 |
| Li et al. | 2025 | 253.687 | -48.459 | 0.496 | -1.276 | -2.691 | â |
| Almeida et al. | 2025 | 253.667 | -48.457 | â | â | â | â |
| Hunt & Reffert | 2024 | 253.707 | -48.447 | 0.496 | -1.238 | -2.68 | -49.752 |
| Cavallo et al. | 2024 | 253.658 | -48.475 | 0.5 | â | â | â |
| Hunt & Reffert | 2023 | 253.707 | -48.447 | 0.496 | -1.238 | -2.68 | -49.752 |
| Dias et al. | 2021 | 253.667 | -48.457 | 0.483 | -1.283 | -2.694 | -47.577 |
| Cantat-Gaudin et al. | 2020 | 253.687 | -48.459 | 0.496 | -1.276 | -2.691 | â |
| Castro-Ginard et al. | 2020 | 253.671 | -48.458 | 0.496 | -1.292 | -2.679 | 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 | 1.58 | 2.98 | â | 31 | -0.130 | â | â | â |
| Almeida et al. | 2025 | 1.94 | 2.54 | â | 237 | â | 402 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 1333* | â | â |
| Cavallo et al. | 2024 | 1.72 | 2.62 | â | 363 | 0.560 | â | â | â |
| Hunt & Reffert | 2023 | 1.86 | 2.74 | 2.25 | 199 | â | â | â | â |
| Dias et al. | 2021 | 1.94 | 2.54 | â | 237 | 0.474 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.79 | 2.17 | â | 339 | 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: intermediate fit.
Cavallo et al. (2024)
Gold sample.