HSC 591
0.19
UTI
0.27
CN
0.44
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
1.7 [arcmin]
- CN 0.27 Poorly populated
- Cdens 0.44 Loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 591 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a large* distance, above the mid-plane, affected by high extinction. It is catalogued as a metal-rich, intermediate-age cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~7.06 kpc) differs significantly from the median photometric distance (~5.12 kpc).
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 distant
High 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 | 302.74 | 38.256 | 0.142 | -2.509 | -4.84 | -31.235 |
| Hunt & Reffert | 2024 | 302.745 | 38.252 | 0.144 | -2.513 | -4.816 | -31.683 |
| Cavallo et al. | 2024 | 302.749 | 38.252 | 0.146 | â | â | â |
| Hunt & Reffert | 2023 | 302.745 | 38.252 | 0.144 | -2.513 | -4.816 | -31.683 |
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 | 752* | â | â |
| Cavallo et al. | 2024 | 4.02 | 2.64 | â | 295 | 0.530 | â | â | â |
| Hunt & Reffert | 2023 | 6.21 | 3.43 | 2.24 | 112 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.