UBC 1285
0.31
UTI
0.48
CN
0.32
Cdens
0.5
CC3
0.13
Clit
1.0
Cdup
Nm (P>50%)
48
Core radius and density
1.7 [pc], 1.6 [pc-2]
- CN 0.48 Poorly populated
- Cdens 0.32 Loose
- CC3 0.5 Intermediate quality
- Clit 0.13 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 1285 is a poorly populated, loose object of intermediate 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 | 86.723 | 32.145 | 0.385 | 0.414 | -2.85 | -23.544 |
| Hu & Soubiran | 2025 | 86.728 | 32.126 | â | â | â | â |
| Zhang et al. | 2024 | 86.73 | 32.16 | â | â | â | â |
| Hunt & Reffert | 2024 | 86.73 | 32.16 | 0.38 | 0.415 | -2.852 | -23.558 |
| Cavallo et al. | 2024 | 86.728 | 32.126 | 0.38 | â | â | â |
| Hunt & Reffert | 2023 | 86.73 | 32.16 | 0.38 | 0.415 | -2.852 | -23.558 |
| Castro-Ginard et al. | 2022 | 86.71 | 32.13 | 0.38 | 0.4 | -2.83 | -21.98 |
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 | 2.37 | 0.97 | 0.71 | 732 | -0.210 | 238 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.250(5) | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.071(1) | â | â | â |
| Hunt & Reffert | 2024 | 2.37 | 0.97 | 0.71 | 732 | â | 238(1) | â | â |
| Cavallo et al. | 2024 | 2.22 | 1.28 | â | 955 | -0.210 | â | â | â |
| Hunt & Reffert | 2023 | 2.37 | 0.97 | 0.71 | 731 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 2.70 | 0.94 | â | 555 | â | 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.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.96 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.96 (50th percentile).