UBC 617
0.54
UTI
0.3
CN
0.81
Cdens
0.5
CC3
0.55
Clit
1.0
Cdup
Radius (P>50% members)
4.0 [arcmin]
- CN 0.3 Poorly populated
- Cdens 0.81 Dense
- CC3 0.5 Intermediate quality
- Clit 0.55 Moderately studied
- Cdup 1.0 Unique
Overview
UBC 617 is a poorly populated, dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.
Relatively close
Moderate extinction
Near-solar metallicity
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 94.774 | 10.111 | 0.427 | -1.395 | -0.176 | 64.707 |
| Hu & Soubiran | 2025 | 94.804 | 10.089 | â | â | â | â |
| Almeida et al. | 2025 | 94.748 | 10.127 | â | â | â | â |
| Zhang et al. | 2024 | 94.772 | 10.122 | â | â | â | â |
| Hunt & Reffert | 2024 | 94.772 | 10.122 | 0.423 | -1.395 | -0.165 | 68.094 |
| Cavallo et al. | 2024 | 94.804 | 10.089 | 0.424 | â | â | â |
| Hunt & Reffert | 2023 | 94.772 | 10.122 | 0.423 | -1.395 | -0.165 | 68.094 |
| Dias et al. | 2021 | 94.748 | 10.127 | 0.413 | -1.39 | -0.172 | 61.138 |
| Cantat-Gaudin et al. | 2020 | 94.739 | 10.121 | 0.445 | -1.377 | -0.2 | â |
| Castro-Ginard et al. | 2020 | 94.732 | 10.127 | 0.446 | -1.362 | -0.192 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.160* | â | â | â |
| Almeida et al. | 2025 | 2.26 | 1.74 | â | 1045 | â | 186 | â | â |
| Zhang et al. | 2024 | â | â | â | â | 0.138* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 204* | â | â |
| Cavallo et al. | 2024 | 2.28 | 1.24 | â | 1122 | 0.250 | â | â | â |
| Hunt & Reffert | 2023 | 2.21 | 0.84 | 0.87 | 1374 | â | â | â | â |
| Dias et al. | 2021 | 2.26 | 1.74 | â | 1045 | -0.108 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.39 | 0.60 | â | 1995 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.
Cavallo et al. (2024)
Gold sample.