UBC 1335
0.21
UTI
0.27
CN
0.02
Cdens
0.5
CC3
0.13
Clit
1.0
Cdup
Nm (P>50%)
27
Core radius and density
4.2 [pc], 0.1 [pc-2]
- CN 0.27 Poorly populated
- Cdens 0.02 Very 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 1335 is a poorly populated, very 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, old 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 | 105.318 | 5.305 | 0.293 | -0.238 | -0.702 | 55.984 |
| Hu & Soubiran | 2025 | 105.343 | 5.288 | â | â | â | â |
| Zhang et al. | 2024 | 105.37 | 5.25 | â | â | â | â |
| Hunt & Reffert | 2024 | 105.37 | 5.25 | 0.293 | -0.235 | -0.663 | 46.138 |
| Cavallo et al. | 2024 | 105.343 | 5.288 | 0.294 | â | â | â |
| Hunt & Reffert | 2023 | 105.37 | 5.25 | 0.293 | -0.235 | -0.663 | 46.138 |
| Castro-Ginard et al. | 2022 | 105.31 | 5.36 | 0.28 | -0.24 | -0.69 | 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 | 2.98 | 0.485 | 1.66 | 1704 | -0.151 | 352 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.140(5) | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.151(1) | â | â | â |
| Hunt & Reffert | 2024 | 2.98 | 0.41 | 1.66 | 1785 | â | 352(1) | â | â |
| Cavallo et al. | 2024 | 2.78 | 1.09 | â | 1622 | -0.170 | â | â | â |
| Hunt & Reffert | 2023 | 2.98 | 0.41 | 1.66 | 1786 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 4.01 | 0.56 | â | 1390 | 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: 0.86 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.86 (50th percentile).