HSC 804
0.20
UTI
0.28
CN
0.22
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
27.7 [arcmin]
- CN 0.28 Poorly populated
- Cdens 0.22 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 804 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low 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.
Close
Low 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 | 338.264 | 53.207 | 1.6 | 0.985 | -1.562 | -13.778 |
| Cavallo et al. | 2024 | 337.958 | 53.216 | 1.596 | â | â | â |
| Hunt & Reffert | 2023 | 338.283 | 53.377 | 1.589 | 1.04 | -1.528 | -19.66 |
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 | 0.65 | 0.88 | â | 204 | 0.570 | â | â | â |
| Hunt & Reffert | 2023 | 0.60 | 0.66 | 0.50 | 167 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.