HSC 2057
0.12
UTI
0.0
CN
0.22
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
14.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.22 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2057 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, intermediate-age 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.
Close
Low extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 120.357 | -40.997 | 1.025 | -4.729 | 4.252 | 11.567 |
| Cavallo et al. | 2024 | 120.433 | -40.954 | 1.027 | â | â | â |
| Hunt & Reffert | 2023 | 120.397 | -41.033 | 1.023 | -4.743 | 4.249 | 17.66 |
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 | 0.98 | 1.05 | â | 166 | 0.270 | â | â | â |
| Hunt & Reffert | 2023 | 0.94 | 0.84 | 1.19 | 65 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.