HSC 2646
0.17
UTI
0.26
CN
0.19
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
15.0 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.19 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2646 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, 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
Metal-poor
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 217.473 | -62.51 | 0.842 | -1.514 | -2.773 | -0.342 |
| Hunt & Reffert | 2024 | 217.475 | -62.538 | 0.836 | -1.51 | -2.692 | -1.657 |
| Cavallo et al. | 2024 | 218.055 | -62.404 | 0.838 | â | â | â |
| Hunt & Reffert | 2023 | 217.475 | -62.538 | 0.836 | -1.51 | -2.692 | -1.657 |
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 | 67* | â | â |
| Cavallo et al. | 2024 | 1.01 | 1.70 | â | 123 | -0.600 | â | â | â |
| Hunt & Reffert | 2023 | 1.12 | 0.88 | 0.48 | 192 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.