UBC 1270
0.18
UTI
0.27
CN
0.04
Cdens
0.38
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
27
Core radius and density
2.7 [pc], 0.2 [pc-2]
- CN 0.27 Poorly populated
- Cdens 0.04 Very loose
- CC3 0.38 Low quality
- Clit 0.1 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 1270 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate distance, above 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 metallicity parameter (see Parameters). It is rarely studied in the literature.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 75.571 | 43.713 | 0.302 | -0.237 | -1.323 | 11.182 |
| Yang et al. | 2025 | 75.631 | 43.654 | â | â | â | â |
| Hunt & Reffert | 2024 | 75.631 | 43.654 | 0.302 | -0.242 | -1.335 | -2.648 |
| Cavallo et al. | 2024 | 75.54 | 43.724 | 0.302 | â | â | â |
| Hunt & Reffert | 2023 | 75.631 | 43.654 | 0.302 | -0.242 | -1.335 | -2.648 |
| Castro-Ginard et al. | 2022 | 75.55 | 43.72 | 0.31 | -0.24 | -1.33 | 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 | 2.975 | 1.56 | 1.18 | 143 | -0.115 | 211 | â | â |
| Yang et al. | 2025 | â | â | â | 144 | -0.500(3) | â | â | â |
| Hunt & Reffert | 2024 | 2.86 | 1.56 | 1.18 | 143 | â | 211(1) | â | â |
| Cavallo et al. | 2024 | 3.09 | 1.85 | â | 123 | 0.270 | â | â | â |
| Hunt & Reffert | 2023 | 2.86 | 1.56 | 1.18 | 143 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 3.76 | 1.22 | â | 291 | 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: 0.94 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.94 (50th percentile).