UPK 137
0.56
UTI
0.33
CN
0.61
Cdens
0.75
CC3
0.55
Clit
1.0
Cdup
Radius (P>50% members)
13.3 [arcmin]
- CN 0.33 Poorly populated
- Cdens 0.61 Moderately dense
- CC3 0.75 High quality
- Clit 0.55 Moderately studied
- Cdup 1.0 Unique
Overview
UPK 137 is a poorly populated, moderately dense object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.
Close
Low extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 306.028 | 54.102 | 1.174 | -2.292 | -6.083 | -17.255 |
| Almeida et al. | 2025 | 305.995 | 54.114 | â | â | â | â |
| Alfonso et al. | 2024 | 305.981 | 54.381 | 1.13 | -2.613 | -6.119 | â |
| Cavallo et al. | 2024 | 306.076 | 54.195 | 1.175 | â | â | â |
| Hunt & Reffert | 2023 | 306.272 | 54.391 | 1.175 | -2.312 | -6.08 | -13.364 |
| Dias et al. | 2021 | 305.995 | 54.114 | 1.155 | -2.31 | -6.061 | â |
| Cantat-Gaudin et al. | 2020 | 306.015 | 54.152 | 1.166 | -2.289 | -6.064 | â |
| Cantat-Gaudin & Anders | 2020 | 305.97 | 54.131 | 1.165 | -2.297 | -6.006 | â |
| Sim et al. | 2019 | 305.978 | 54.161 | â | -2.34 | -6.04 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Almeida et al. | 2025 | 0.83 | 0.39 | â | 171 | â | 70 | â | â |
| Alfonso et al. | 2024 | 0.81 | 0.35 | â | 90 | 0.006 | â | â | â |
| Cavallo et al. | 2024 | 0.86 | 0.38 | â | 79 | 0.490 | â | â | â |
| Hunt & Reffert | 2023 | 0.82 | 0.17 | 0.44 | 86 | â | â | â | â |
| Tarricq et al. | 2022 | 0.83 | â | â | 63 | â | â | â | â |
| Dias et al. | 2021 | 0.83 | 0.39 | â | 171 | 0.006 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 0.81 | 0.35 | â | 51 | â | â | â | â |
| Cantat-Gaudin & Anders | 2020 | 0.84 | â | â | â | â | â | â | â |
| Sim et al. | 2019 | 0.84 | â | â | 32 | â | â | â | â |
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.