UBC 575
0.50
UTI
0.56
CN
0.4
Cdens
0.75
CC3
0.4
Clit
1.0
Cdup
Stellar density (N50/rad)
2.0 [N/pc2]
- CN 0.56 Moderately populated
- Cdens 0.4 Loose
- CC3 0.75 High quality
- Clit 0.4 Poorly 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 575 is a moderately populated, loose object of 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, young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is poorly studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 290.924 | -5.087 | 0.943 | -0.279 | -5.169 | 7.67 |
| Li et al. | 2025 | 290.994 | -5.102 | 0.915 | -0.303 | -5.18 | â |
| Hunt & Reffert | 2024 | 290.934 | -5.093 | 0.941 | -0.274 | -5.186 | 6.28 |
| Cavallo et al. | 2024 | 290.781 | -5.099 | 0.941 | â | â | â |
| Hunt & Reffert | 2023 | 290.934 | -5.093 | 0.941 | -0.274 | -5.186 | 6.28 |
| Cantat-Gaudin et al. | 2020 | 290.994 | -5.102 | 0.915 | -0.303 | -5.18 | â |
| Castro-Ginard et al. | 2020 | 291.01 | -5.134 | 0.914 | -0.299 | -5.182 | 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 | 1.105 | 1.225 | 0.72 | 94 | 0.163 | 140 | â | â |
| Liu et al. | 2025 | 1.39 | 0.36 | â | 204 | â | â | â | â |
| Li et al. | 2025 | 1.13 | 1.41 | â | 48 | 0.065 | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 140(1) | â | â |
| Cavallo et al. | 2024 | 1.08 | 1.35 | â | 74 | 0.260 | â | â | â |
| Hunt & Reffert | 2023 | 1.01 | 1.10 | 0.72 | 114 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Dias et al. (2021)
Dubious open cluster.
Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 378 along with UBC_356.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P75, along with UBC_356.
Cavallo et al. (2024)
Gold sample.