UBC 301
0.49
UTI
0.54
CN
0.61
Cdens
1.0
CC3
0.16
Clit
1.0
Cdup
Nm (P>50%)
58
Core radius and density
1.2 [pc], 3.0 [pc-2]
- CN 0.54 Moderately populated
- Cdens 0.61 Moderately dense
- CC3 1.0 Very high quality
- Clit 0.16 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 301 is a moderately populated, moderately dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is rarely studied in the literature.
Note: This object shares a significant 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 | 219.49 | -58.996 | 0.599 | -5.58 | -2.671 | -38.904 |
| Li et al. | 2025 | 219.49 | -58.996 | 0.595 | -5.544 | -2.734 | â |
| Hunt & Reffert | 2024 | 219.504 | -58.992 | 0.6 | -5.594 | -2.645 | -38.885 |
| Cavallo et al. | 2024 | 219.502 | -58.986 | 0.601 | â | â | â |
| Hunt & Reffert | 2023 | 219.504 | -58.992 | 0.6 | -5.594 | -2.645 | -38.885 |
| Cantat-Gaudin et al. | 2020 | 219.49 | -58.996 | 0.595 | -5.544 | -2.734 | â |
| Castro-Ginard et al. | 2020 | 219.463 | -58.992 | 0.597 | -5.549 | -2.724 | 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 | 1.56 | 1.28 | 0.35 | 99 | -0.472 | 321 | â | â |
| Li et al. | 2025 | 1.36 | 1.16 | â | 623 | -0.135 | â | â | â |
| Hunt & Reffert | 2024 | 1.56 | 1.28 | 0.35 | 99 | â | 321(1) | â | â |
| Cavallo et al. | 2024 | 1.21 | 2.01 | â | 47 | -0.810 | â | â | â |
| Hunt & Reffert | 2023 | 1.56 | 1.28 | 0.35 | 99 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.71 | 1.16 | â | 234 | â | â | â | â |
| Kounkel et al. | 2020 | 1.66 | 1.73 | â | 29 | 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).