HSC 657
0.29
UTI
0.41
CN
0.68
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.5 [arcmin]
- CN 0.41 Poorly populated
- Cdens 0.68 Moderately dense
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 657 is a poorly populated, moderately dense object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.
Relatively close
Moderate extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 306.687 | 46.814 | 0.377 | -2.027 | -4.715 | -22.156 |
| Hunt & Reffert | 2024 | 306.688 | 46.825 | 0.36 | -2.034 | -4.7 | -22.166 |
| Cavallo et al. | 2024 | 306.742 | 46.786 | 0.359 | â | â | â |
| Hunt & Reffert | 2023 | 306.688 | 46.825 | 0.36 | -2.034 | -4.7 | -22.166 |
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 | 178* | â | â |
| Cavallo et al. | 2024 | 2.47 | 2.93 | â | 39 | 0.230 | â | â | â |
| Hunt & Reffert | 2023 | 2.59 | 2.67 | 2.04 | 84 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.