HSC 1680
0.23
UTI
0.3
CN
0.35
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
2.7 [arcmin]
- CN 0.3 Poorly populated
- Cdens 0.35 Loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1680 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a large 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.
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 | 102.627 | -0.32 | 0.19 | -0.491 | -0.303 | â |
| Hunt & Reffert | 2024 | 102.619 | -0.325 | 0.202 | -0.47 | -0.285 | â |
| Cavallo et al. | 2024 | 102.618 | -0.295 | 0.202 | â | â | â |
| Hunt & Reffert | 2023 | 102.619 | -0.325 | 0.202 | -0.47 | -0.285 | 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 | 264* | â | â |
| Cavallo et al. | 2024 | 4.37 | 1.53 | â | 182 | 0.400 | â | â | â |
| Hunt & Reffert | 2023 | 4.32 | 1.79 | 1.27 | 61 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.