HSC 1657
0.06
UTI
0.0
CN
0.14
Cdens
0.38
CC3
0.0
Clit
0.6
Cdup
Radius (P>50% members)
12.1 [arcmin]
- CN 0.0 Sparse
- Cdens 0.14 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 0.6 Likely unique
Overview
HSC 1657 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.
Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.
Relatively 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 | 101.501 | 2.525 | 0.637 | -1.283 | 0.953 | 54.862 |
| Zhang et al. | 2024 | 101.483 | 2.516 | â | â | â | â |
| Cavallo et al. | 2024 | 101.535 | 2.284 | 0.649 | â | â | â |
| Hunt & Reffert | 2023 | 101.483 | 2.516 | 0.648 | -1.256 | 0.97 | 54.888 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | -0.371* | â | â | â |
| Cavallo et al. | 2024 | 1.56 | 0.92 | â | 204 | 0.320 | â | â | â |
| Hunt & Reffert | 2023 | 1.47 | 0.73 | 0.45 | 341 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.