UBC 1440
0.39
UTI
0.74
CN
0.3
Cdens
0.75
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
97
Core radius and density
2.7 [pc], 1.5 [pc-2]
- CN 0.74 Moderately populated
- Cdens 0.3 Loose
- CC3 0.75 High 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 1440 is a moderately populated, loose object of high 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, old cluster (see Parameters). It is rarely studied in the literature.
Note: This object shares a moderate percentage of members with a later reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 123.173 | -45.275 | 0.26 | -2.449 | 3.149 | 22.051 |
| Hu & Soubiran | 2025 | 123.187 | -45.264 | â | â | â | â |
| Hunt & Reffert | 2024 | 123.177 | -45.29 | 0.258 | -2.473 | 3.147 | 27.817 |
| Cavallo et al. | 2024 | 123.187 | -45.264 | 0.259 | â | â | â |
| Hunt & Reffert | 2023 | 123.177 | -45.29 | 0.258 | -2.473 | 3.147 | 27.817 |
| Castro-Ginard et al. | 2022 | 123.17 | -45.25 | 0.26 | -2.46 | 3.16 | 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 | 3.39 | 1.7 | 1.96 | 1478 | -0.085 | 694 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.150(5) | â | â | â |
| Hunt & Reffert | 2024 | 3.39 | 1.77 | 1.96 | 1135 | â | 694(1) | â | â |
| Cavallo et al. | 2024 | 3.05 | 1.63 | â | 1820 | -0.020 | â | â | â |
| Hunt & Reffert | 2023 | 3.39 | 1.77 | 1.96 | 1135 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 4.30 | 1.17 | â | 2032 | 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: 0.63 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.63 (50th percentile).