UBC 1427
0.23
UTI
0.54
CN
0.04
Cdens
0.38
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
57
Core radius and density
1.3 [pc], 0.2 [pc-2]
- CN 0.54 Moderately 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 1427 is a moderately populated, very loose object of low C3 quality. Its parallax locates it at a moderate distance, near 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 | 122.918 | -33.783 | 0.239 | -3.092 | 3.643 | 48.131 |
| Hu & Soubiran | 2025 | 122.925 | -33.787 | â | â | â | â |
| Hunt & Reffert | 2024 | 122.946 | -33.776 | 0.25 | -3.094 | 3.627 | 48.908 |
| Cavallo et al. | 2024 | 122.925 | -33.787 | 0.245 | â | â | â |
| Hunt & Reffert | 2023 | 122.946 | -33.776 | 0.25 | -3.094 | 3.627 | 48.908 |
| Castro-Ginard et al. | 2022 | 122.9 | -33.77 | 0.25 | -3.08 | 3.63 | 46.73 |
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 | 3.56 | 1.18 | 1.9 | 662 | -0.350 | 298 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.250(5) | â | â | â |
| Hunt & Reffert | 2024 | 3.56 | 1.18 | 1.90 | 412 | â | 298(1) | â | â |
| Cavallo et al. | 2024 | 2.77 | 1.52 | â | 912 | -0.450 | â | â | â |
| Hunt & Reffert | 2023 | 3.56 | 1.18 | 1.90 | 412 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 4.14 | 0.80 | â | 946 | 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: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).