UPK 612
(OCSN 319)
0.77
UTI
0.7
CN
1.0
Cdens
0.75
CC3
0.7
Clit
1.0
Cdup
Radius (P>50% members)
59.5 [arcmin]
- CN 0.7 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.7 Moderately studied
- Cdup 1.0 Unique
Overview
UPK 612 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.
Very close
Low extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 254.275 | -68.051 | 4.359 | -13.31 | -12.145 | 3.457 |
| Li et al. | 2025 | 253.423 | -67.788 | 4.323 | -13.318 | -12.02 | â |
| Almeida et al. | 2025 | 252.983 | -67.612 | â | â | â | â |
| Alfonso et al. | 2024 | 254.849 | -68.078 | 4.307 | -13.182 | -12.239 | â |
| Cavallo et al. | 2024 | 254.22 | -67.891 | 4.387 | â | â | â |
| Hunt & Reffert | 2023 | 255.099 | -68.524 | 4.379 | -13.327 | -12.208 | 2.522 |
| Qin et al. | 2023 | 254.62 | -68.24 | 4.29 | -13.24 | -11.6 | 3.04 |
| He et al. | 2022 | 254.468 | -67.927 | 4.405 | -13.532 | -12.359 | â |
| Tarricq et al. | 2022 | 255.279 | -68.047 | 4.364 | -13.237 | -12.272 | â |
| Dias et al. | 2021 | 252.983 | -67.612 | 4.338 | -13.375 | -11.967 | 4.057 |
| Cantat-Gaudin et al. | 2020 | 253.423 | -67.788 | 4.323 | -13.318 | -12.02 | â |
| Cantat-Gaudin & Anders | 2020 | 253.351 | -67.815 | 4.307 | -13.402 | -12.077 | â |
| Sim et al. | 2019 | 253.346 | -68.078 | â | -13.27 | -12.06 | 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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Li et al. | 2025 | 0.29 | 0.23 | â | 106 | 0.024 | â | â | â |
| Almeida et al. | 2025 | 0.23 | 0.26 | â | 141 | â | 211 | â | â |
| Alfonso et al. | 2024 | 0.24 | 0.05 | â | 60 | -0.075 | â | â | â |
| Cavallo et al. | 2024 | 0.23 | 0.49 | â | 100 | 0.270 | â | â | â |
| Hunt & Reffert | 2023 | 0.23 | 0.10 | 0.62 | 120 | â | â | â | â |
| Qin et al. | 2023 | 0.22 | 0.06 | â | 200 | â | â | â | â |
| He et al. | 2022 | â | 0.35 | â | 100 | â | â | â | â |
| Tarricq et al. | 2022 | 0.24 | â | â | 102 | â | â | â | â |
| Dias et al. | 2021 | 0.23 | 0.26 | â | 141 | -0.076 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 0.24 | 0.05 | â | 100 | â | â | â | â |
| Cantat-Gaudin & Anders | 2020 | 0.23 | â | â | â | â | â | â | â |
| Sim et al. | 2019 | 0.24 | â | â | 100 | â | â | â | â |
Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.