UBC 1251
0.15
UTI
0.0
CN
0.22
Cdens
0.38
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
1.2 [pc], 1.1 [pc-2]
- CN 0.0 Sparse
- Cdens 0.22 Very loose
- CC3 0.38 Low quality
- Clit 0.06 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 1251 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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 | 51.463 | 49.076 | 0.38 | 0.358 | -1.276 | -32.104 |
| Hunt & Reffert | 2024 | 51.46 | 49.081 | 0.373 | 0.395 | -1.277 | -24.459 |
| Cavallo et al. | 2024 | 51.486 | 49.08 | 0.375 | â | â | â |
| Hunt & Reffert | 2023 | 51.46 | 49.081 | 0.373 | 0.395 | -1.277 | -24.459 |
| Castro-Ginard et al. | 2022 | 51.46 | 49.05 | 0.37 | 0.38 | -1.25 | 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 | 2.615 | 1.57 | 1.09 | 308 | 0.120 | 212 | â | â |
| Hunt & Reffert | 2024 | 2.45 | 1.57 | 1.09 | 258 | â | 212(1) | â | â |
| Cavallo et al. | 2024 | 2.78 | 1.84 | â | 372 | 0.120 | â | â | â |
| Hunt & Reffert | 2023 | 2.45 | 1.57 | 1.09 | 258 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 3.00 | 1.11 | â | 357 | 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: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).