HSC 252
0.07
UTI
0.0
CN
0.12
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
31.7 [arcmin]
- CN 0.0 Sparse
- Cdens 0.12 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 252 is a sparse, very loose object of low C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low 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 was recently reported in the literature.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Close
Low 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 | 289.565 | -11.392 | 1.506 | 8.339 | -1.88 | -48.868 |
| Hu & Soubiran | 2025 | 289.238 | -11.209 | â | â | â | â |
| Cavallo et al. | 2024 | 289.238 | -11.209 | 1.515 | â | â | â |
| Hunt & Reffert | 2023 | 289.59 | -11.33 | 1.522 | 8.316 | -1.79 | -48.27 |
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 | -0.110* | â | â | â |
| Cavallo et al. | 2024 | 0.67 | 0.65 | â | 2089 | 0.410 | â | â | â |
| Hunt & Reffert | 2023 | 0.63 | 0.57 | 1.51 | 2104 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.