UBC 591
0.26
UTI
0.61
CN
1.0
Cdens
0.75
CC3
0.45
Clit
0.4
Cdup
Stellar density (N50/rad)
13.7 [N/pc2]
- CN 0.61 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.45 Poorly studied
- Cdup 0.4 Possibly duplicate
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 591 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate 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 parameter (see Parameters). It is poorly studied in the literature.
â ī¸ Warning: This is possibly a duplicate object, which shares a significant 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 | 325.016 | 49.307 | 0.432 | -3.476 | -4.915 | â |
| Almeida et al. | 2025 | 325.019 | 49.316 | â | â | â | â |
| Zhang et al. | 2024 | 325.01 | 49.313 | â | â | â | â |
| Hunt & Reffert | 2024 | 325.009 | 49.313 | 0.431 | -3.475 | -4.916 | â |
| Cavallo et al. | 2024 | 324.998 | 49.308 | 0.434 | â | â | â |
| Hunt & Reffert | 2023 | 325.009 | 49.313 | 0.431 | -3.475 | -4.916 | â |
| Almeida et al. | 2023 | 325.015 | 49.315 | â | â | â | â |
| Dias et al. | 2021 | 325.019 | 49.316 | 0.445 | -3.479 | -4.899 | â |
| Cantat-Gaudin et al. | 2020 | 325.003 | 49.324 | 0.49 | -3.506 | -4.848 | 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 | 2.07 | 1.35 | 1.1 | 122 | -0.081 | 204 | 0.51 | â |
| Almeida et al. | 2025 | 2.01 | 1.38 | â | 70 | â | 155 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.084(1) | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 359(1) | â | â |
| Cavallo et al. | 2024 | 2.20 | 1.35 | â | 257 | -0.200 | â | â | â |
| Hunt & Reffert | 2023 | 2.19 | 0.91 | 1.10 | 368 | â | â | â | â |
| Almeida et al. | 2023 | 2.07 | 1.21 | â | 122 | 0.025 | 204(1) | 0.51 | â |
| Dias et al. | 2021 | 2.01 | 1.38 | â | 70 | -0.078 | 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: good fit.