UBC 541
0.40
UTI
0.52
CN
1.0
Cdens
1.0
CC3
0.45
Clit
0.58
Cdup
Stellar density (N50/rad)
7.5 [N/pc2]
- CN 0.52 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.45 Poorly studied
- Cdup 0.58 Likely 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 541 is a moderately 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 metal-rich, very young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.
Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 243.011 | -50.203 | 0.416 | -2.686 | -2.868 | -22.345 |
| Almeida et al. | 2025 | 243.055 | -50.172 | â | â | â | â |
| Hunt & Reffert | 2024 | 243.028 | -50.228 | 0.415 | -2.712 | -2.836 | -1.694 |
| Celli et al. | 2024 | 243.015 | -50.188 | â | â | â | â |
| Cavallo et al. | 2024 | 243.007 | -50.206 | 0.415 | â | â | â |
| Hunt & Reffert | 2023 | 243.028 | -50.228 | 0.415 | -2.712 | -2.836 | -1.694 |
| Dias et al. | 2021 | 243.055 | -50.172 | 0.378 | -2.698 | -2.761 | -41.406 |
| Cantat-Gaudin et al. | 2020 | 243.015 | -50.188 | 0.391 | -2.688 | -2.785 | â |
| Castro-Ginard et al. | 2020 | 243.038 | -50.181 | 0.388 | -2.694 | -2.771 | 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 | 2.31 | 2.81 | 1.9 | 16 | 0.696 | 860 | â | â |
| Almeida et al. | 2025 | 2.41 | 2.81 | â | 9 | â | 1151 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 694(1) | â | â |
| Celli et al. | 2024 | â | â | â | 22 | â | 860 | â | â |
| Cavallo et al. | 2024 | 1.94 | 2.73 | â | 43 | 0.940 | â | â | â |
| Hunt & Reffert | 2023 | 2.22 | 3.12 | 1.90 | 7 | â | â | â | â |
| Dias et al. | 2021 | 2.41 | 2.81 | â | 9 | 0.451 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.31 | 2.78 | â | 22 | 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. Silver sample.