HSC 2860
0.09
UTI
0.0
CN
0.07
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
6.9 [arcmin]
- CN 0.0 Sparse
- Cdens 0.07 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2860 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, near-solar metallicity, very young 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.
Distant
Very high extinction
Massive
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 257.286 | -40.593 | 0.275 | -1.238 | -2.712 | -149.047 |
| Hunt & Reffert | 2024 | 257.297 | -40.61 | 0.268 | -1.253 | -2.687 | -31.991 |
| Cavallo et al. | 2024 | 257.195 | -40.584 | 0.267 | â | â | â |
| Hunt & Reffert | 2023 | 257.297 | -40.61 | 0.268 | -1.253 | -2.687 | -31.991 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 4161* | â | â |
| Cavallo et al. | 2024 | 3.01 | 5.39 | â | 7 | 0.070 | â | â | â |
| Hunt & Reffert | 2023 | 3.38 | 5.72 | 2.93 | 14 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.