HSC 993
0.11
UTI
0.26
CN
0.16
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
12.5 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.16 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 993 is a poorly populated, very loose object of very 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-rich, 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-rich
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 16.437 | 63.004 | 0.646 | 0.009 | -1.852 | -37.875 |
| Hunt & Reffert | 2024 | 16.478 | 63.002 | 0.641 | 0.032 | -1.862 | -41.423 |
| Cavallo et al. | 2024 | 16.422 | 62.985 | 0.642 | â | â | â |
| Hunt & Reffert | 2023 | 16.478 | 63.002 | 0.641 | 0.032 | -1.862 | -41.423 |
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 | 78* | â | â |
| Cavallo et al. | 2024 | 1.77 | 1.95 | â | 229 | 0.900 | â | â | â |
| Hunt & Reffert | 2023 | 1.55 | 2.17 | 0.99 | 116 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.