HSC 2966
0.61
UTI
0.57
CN
1.0
Cdens
1.0
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
1.1 [arcmin]
- CN 0.57 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 2966 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a large* distance, above the mid-plane, affected by high extinction. It is catalogued as an extremely massive, metal-poor, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~5.30 kpc) differs significantly from the median photometric distance (~3.85 kpc).
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Distant
High extinction
Extremely massive
Metal-poor
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 263.082 | -30.372 | 0.189 | -1.701 | -3.019 | -82.437 |
| Hu & Soubiran | 2025 | 263.106 | -30.364 | â | â | â | â |
| Hunt & Reffert | 2024 | 263.093 | -30.374 | 0.215 | -1.684 | -2.984 | -38.08 |
| Cavallo et al. | 2024 | 263.106 | -30.364 | 0.216 | â | â | â |
| Hunt & Reffert | 2023 | 263.093 | -30.374 | 0.215 | -1.684 | -2.984 | -38.08 |
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 | -0.490* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 11201* | â | â |
| Cavallo et al. | 2024 | 3.73 | 5.34 | â | 661 | -0.870 | â | â | â |
| Hunt & Reffert | 2023 | 3.98 | 4.56 | 2.56 | 1986 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.