HSC 1077
0.09
UTI
0.26
CN
0.08
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
285.7 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.08 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1077 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster (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 | 178.238 | 64.164 | 10.124 | -69.376 | -10.676 | -0.961 |
| Hu & Soubiran | 2025 | 174.578 | 63.959 | â | â | â | â |
| Cavallo et al. | 2024 | 174.578 | 63.959 | 10.577 | â | â | â |
| Hunt & Reffert | 2023 | 179.221 | 64.358 | 10.523 | -69.191 | -10.867 | -3.663 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 0.10 | 0.79 | â | 1778 | 0.250 | â | â | â |
| Hunt & Reffert | 2023 | 0.10 | 0.62 | 0.44 | 3837 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.