UBC 458
0.38
UTI
0.49
CN
0.25
Cdens
0.75
CC3
0.19
Clit
1.0
Cdup
Nm (P>50%)
49
Core radius and density
2.3 [pc], 1.2 [pc-2]
- CN 0.49 Poorly populated
- Cdens 0.25 Loose
- CC3 0.75 High quality
- Clit 0.19 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 458 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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 | 115.331 | -18.701 | 0.272 | -3.043 | 2.951 | 68.033 |
| Almeida et al. | 2025 | 115.328 | -18.706 | â | â | â | â |
| Hunt & Reffert | 2024 | 115.332 | -18.696 | 0.268 | -3.034 | 2.935 | 68.015 |
| Cavallo et al. | 2024 | 115.33 | -18.697 | 0.262 | â | â | â |
| Hunt & Reffert | 2023 | 115.332 | -18.696 | 0.268 | -3.034 | 2.935 | 68.015 |
| Dias et al. | 2021 | 115.328 | -18.706 | 0.27 | -3.027 | 2.927 | 68.394 |
| Cantat-Gaudin et al. | 2020 | 115.321 | -18.699 | 0.224 | -3.051 | 2.932 | â |
| Castro-Ginard et al. | 2020 | 115.324 | -18.699 | 0.233 | -3.042 | 2.929 | 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 | 3.44 | 0.94 | 1.22 | 230 | -0.044 | 286 | â | â |
| Almeida et al. | 2025 | 3.66 | 0.94 | â | 187 | â | 197 | â | â |
| Hunt & Reffert | 2024 | 3.44 | 0.89 | 1.22 | 230 | â | 374(1) | â | â |
| Cavallo et al. | 2024 | 3.24 | 1.16 | â | 240 | -0.150 | â | â | â |
| Hunt & Reffert | 2023 | 3.44 | 0.89 | 1.22 | 231 | â | â | â | â |
| Dias et al. | 2021 | 3.66 | 0.94 | â | 187 | 0.061 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.50 | 0.62 | â | 288 | â | â | â | â |
| Kounkel et al. | 2020 | 2.65 | 1.72 | â | 126 | 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: good fit.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).