UBC 515
0.44
UTI
0.31
CN
0.66
Cdens
0.75
CC3
0.23
Clit
1.0
Cdup
Nm (P>50%)
31
Core radius and density
1.0 [pc], 3.3 [pc-2]
- CN 0.31 Poorly populated
- Cdens 0.66 Moderately dense
- CC3 0.75 High quality
- Clit 0.23 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 515 is a poorly populated, moderately dense object of high 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, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 179.337 | -62.966 | 0.283 | -6.163 | 0.725 | â |
| Almeida et al. | 2025 | 179.307 | -62.965 | â | â | â | â |
| Hunt & Reffert | 2024 | 179.335 | -62.973 | 0.293 | -6.174 | 0.67 | â |
| Celli et al. | 2024 | 179.311 | -62.968 | â | â | â | â |
| Cavallo et al. | 2024 | 179.276 | -62.975 | 0.292 | â | â | â |
| Hunt & Reffert | 2023 | 179.335 | -62.973 | 0.293 | -6.174 | 0.67 | â |
| Dias et al. | 2021 | 179.307 | -62.965 | 0.239 | -6.139 | 0.669 | â |
| Cantat-Gaudin et al. | 2020 | 179.311 | -62.968 | 0.239 | -6.147 | 0.691 | â |
| Castro-Ginard et al. | 2020 | 179.319 | -62.968 | 0.239 | -6.13 | 0.685 | 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 | 3.56 | 1.49 | 1.29 | 21 | 0.319 | 284 | â | â |
| Almeida et al. | 2025 | 3.82 | 1.49 | â | 21 | â | 767 | â | â |
| Hunt & Reffert | 2024 | 3.04 | 0.98 | 1.29 | 58 | â | 273(1) | â | â |
| Celli et al. | 2024 | â | â | â | 8 | â | 284 | â | â |
| Cavallo et al. | 2024 | 3.27 | 1.46 | â | 59 | 0.210 | â | â | â |
| Hunt & Reffert | 2023 | 3.04 | 0.98 | 1.29 | 58 | â | â | â | â |
| Dias et al. | 2021 | 3.82 | 1.49 | â | 21 | 0.428 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.58 | 1.53 | â | 8 | â | â | â | â |
| Kounkel et al. | 2020 | 3.56 | 1.97 | â | 9 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: intermediate fit. Silver sample.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 1.00 (50th percentile), true positive (human-assigned).
Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 1.00 (50th percentile), true positive (human-assigned).