HSC 2166
0.13
UTI
0.25
CN
0.16
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
60.3 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.16 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2166 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young 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.
Very close
Low 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 | 150.667 | -37.336 | 3.094 | 1.664 | -5.065 | -4.952 |
| Cavallo et al. | 2024 | 150.71 | -37.377 | 3.092 | â | â | â |
| Hunt & Reffert | 2023 | 149.644 | -35.818 | 3.089 | 1.552 | -4.918 | -6.783 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 0.34 | 0.49 | â | 38 | -0.250 | â | â | â |
| Hunt & Reffert | 2023 | 0.32 | 0.62 | 0.45 | 94 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.