HSC 356
0.08
UTI
0.0
CN
0.04
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
103.5 [arcmin]
- CN 0.0 Sparse
- Cdens 0.04 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 356 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very 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.
Very 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 | 318.368 | -10.569 | 2.843 | 9.202 | 1.19 | -9.431 |
| Hu & Soubiran | 2025 | 318.52 | -10.387 | â | â | â | â |
| Cavallo et al. | 2024 | 318.52 | -10.387 | 2.874 | â | â | â |
| Hunt & Reffert | 2023 | 318.991 | -11.015 | 2.864 | 9.203 | 1.153 | -8.548 |
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 | -0.420* | â | â | â |
| Cavallo et al. | 2024 | 0.36 | 0.24 | â | 2042 | 0.240 | â | â | â |
| Hunt & Reffert | 2023 | 0.33 | 0.26 | 0.38 | 3890 | 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.