HSC 1831
0.11
UTI
0.26
CN
0.18
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
6.8 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.18 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1831 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
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.
Relatively close
Moderate 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 | 111.696 | -16.333 | 0.365 | -3.029 | 3.575 | 89.989 |
| Hunt & Reffert | 2024 | 111.661 | -16.433 | 0.347 | -3.033 | 3.564 | â |
| Cavallo et al. | 2024 | 111.705 | -16.317 | 0.338 | â | â | â |
| Hunt & Reffert | 2023 | 111.661 | -16.433 | 0.347 | -3.033 | 3.564 | â |
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 | 115* | â | â |
| Cavallo et al. | 2024 | 3.34 | 2.09 | â | 245 | 0.320 | â | â | â |
| Hunt & Reffert | 2023 | 2.51 | 1.87 | 1.56 | 144 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.