UBC 590
0.34
UTI
0.25
CN
0.26
Cdens
0.75
CC3
0.23
Clit
1.0
Cdup
Nm (P>50%)
25
Core radius and density
1.2 [pc], 1.3 [pc-2]
- CN 0.25 Poorly populated
- Cdens 0.26 Loose
- CC3 0.75 High quality
- Clit 0.23 Rarely studied
- Cdup 1.0 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 590 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 313.824 | 47.566 | 0.239 | -3.105 | -4.135 | â |
| Almeida et al. | 2025 | 313.83 | 47.579 | â | â | â | â |
| Hunt & Reffert | 2024 | 313.842 | 47.56 | 0.242 | -3.076 | -4.138 | â |
| Celli et al. | 2024 | 313.824 | 47.579 | â | â | â | â |
| Cavallo et al. | 2024 | 313.839 | 47.539 | 0.241 | â | â | â |
| Hunt & Reffert | 2023 | 313.842 | 47.56 | 0.242 | -3.076 | -4.138 | â |
| Dias et al. | 2021 | 313.83 | 47.579 | 0.224 | -3.112 | -4.11 | â |
| Cantat-Gaudin et al. | 2020 | 313.824 | 47.579 | 0.222 | -3.134 | -4.102 | â |
| Castro-Ginard et al. | 2020 | 313.797 | 47.599 | 0.221 | -3.137 | -4.14 | 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 | 4.04 | 3.2 | 1.0 | 12 | 0.337 | 260 | â | â |
| Almeida et al. | 2025 | 4.35 | 3.20 | â | 5 | â | 223 | â | â |
| Hunt & Reffert | 2024 | 4.04 | 3.61 | 1.00 | 13 | â | 388(1) | â | â |
| Celli et al. | 2024 | â | â | â | 12 | â | 260 | â | â |
| Cavallo et al. | 2024 | 3.10 | 3.10 | â | 251 | 0.350 | â | â | â |
| Hunt & Reffert | 2023 | 4.04 | 3.61 | 1.00 | 13 | â | â | â | â |
| Dias et al. | 2021 | 4.35 | 3.20 | â | 5 | 0.324 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.80 | 3.37 | â | 12 | â | â | â | â |
| Kounkel et al. | 2020 | 3.10 | 3.17 | â | 123 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit. Silver sample.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).