HSC 1681
0.09
UTI
0.0
CN
0.06
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
5.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.06 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1681 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, well above the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It was recently reported in the literature.
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
Low extinction
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 112.738 | 4.617 | 0.221 | -1.318 | 0.098 | 73.414 |
| Hunt & Reffert | 2023 | 112.733 | 4.631 | 0.208 | -1.307 | 0.101 | 74.305 |
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 | 2023 | 4.23 | 0.20 | 0.64 | 1574 | â | â | â | â |
Hunt & Reffert (2024)
Classified as a moving group.