UBC 488
0.35
UTI
0.27
CN
0.49
Cdens
0.62
CC3
0.19
Clit
1.0
Cdup
Nm (P>50%)
27
Core radius and density
1.1 [pc], 2.4 [pc-2]
- CN 0.27 Poorly populated
- Cdens 0.49 Loose
- CC3 0.62 Intermediate 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 488 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a large 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 and metallicity parameters (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 | 139.769 | -53.576 | 0.134 | -4.348 | 4.158 | 63.812 |
| Almeida et al. | 2025 | 139.783 | -53.56 | â | â | â | â |
| Hunt & Reffert | 2024 | 139.77 | -53.577 | 0.128 | -4.349 | 4.175 | 63.767 |
| Cavallo et al. | 2024 | 139.769 | -53.579 | 0.13 | â | â | â |
| Hunt & Reffert | 2023 | 139.77 | -53.577 | 0.128 | -4.349 | 4.175 | 63.767 |
| Dias et al. | 2021 | 139.783 | -53.56 | 0.123 | -4.316 | 4.093 | â |
| Cantat-Gaudin et al. | 2020 | 139.767 | -53.576 | 0.121 | -4.349 | 4.157 | â |
| Castro-Ginard et al. | 2020 | 139.777 | -53.579 | 0.121 | -4.319 | 4.119 | 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 | 6.48 | 2.08 | 1.39 | 129 | -0.127 | 920 | â | â |
| Almeida et al. | 2025 | 7.22 | 2.29 | â | 5 | â | 1077 | â | â |
| Hunt & Reffert | 2024 | 6.48 | 2.08 | 1.39 | 129 | â | 763(1) | â | â |
| Cavallo et al. | 2024 | 5.42 | 2.31 | â | 36 | -0.490 | â | â | â |
| Hunt & Reffert | 2023 | 6.48 | 2.08 | 1.39 | 129 | â | â | â | â |
| Dias et al. | 2021 | 7.22 | 2.29 | â | 5 | 0.236 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 5.40 | 1.75 | â | 191 | â | â | â | â |
| Kounkel et al. | 2020 | 4.82 | 1.85 | â | 302 | 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: good fit. Isochrone match: intermediate fit.
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).