HSC 2157
0.38
UTI
0.25
CN
1.0
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
1.0 [arcmin]
- CN 0.25 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2157 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a large distance, below 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.
Very distant
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 | 132.595 | -47.46 | 0.19 | -3.592 | 3.924 | 61.3 |
| Hunt & Reffert | 2024 | 132.584 | -47.457 | 0.189 | -3.616 | 3.931 | 61.401 |
| Cavallo et al. | 2024 | 132.587 | -47.467 | 0.188 | â | â | â |
| Hunt & Reffert | 2023 | 132.584 | -47.457 | 0.189 | -3.616 | 3.931 | 61.401 |
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 | 236* | â | â |
| Cavallo et al. | 2024 | 5.45 | 2.82 | â | 135 | 0.420 | â | â | â |
| Hunt & Reffert | 2023 | 5.83 | 2.67 | 1.02 | 185 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.