HSC 2666
0.14
UTI
0.0
CN
0.19
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.5 [arcmin]
- CN 0.0 Sparse
- Cdens 0.19 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2666 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, below 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.
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.
Relatively close
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 | 226.177 | -61.035 | 0.302 | -4.659 | -3.73 | -29.382 |
| Hunt & Reffert | 2024 | 226.142 | -61.058 | 0.299 | -4.671 | -3.742 | -29.278 |
| Cavallo et al. | 2024 | 226.288 | -61.022 | 0.299 | â | â | â |
| Hunt & Reffert | 2023 | 226.142 | -61.058 | 0.299 | -4.671 | -3.742 | -29.278 |
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 | 157* | â | â |
| Cavallo et al. | 2024 | 2.58 | 1.89 | â | 191 | 0.340 | â | â | â |
| Hunt & Reffert | 2023 | 3.06 | 2.34 | 0.65 | 57 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.