HSC 758
0.19
UTI
0.25
CN
0.22
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
1.1 [N/pc2]
- CN 0.25 Poorly populated
- Cdens 0.22 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 758 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 325.485 | 54.736 | 6.974 | 20.512 | 5.204 | -20.753 |
| Cavallo et al. | 2024 | 325.149 | 54.488 | 6.978 | â | â | â |
| Hunt & Reffert | 2023 | 323.983 | 55.117 | 6.978 | 20.356 | 5.115 | -26.912 |
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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 0.145 | 0.56 | 0.71 | 65 | 0.100 | â | â | â |
| Cavallo et al. | 2024 | 0.15 | 0.57 | â | 78 | 0.100 | â | â | â |
| Hunt & Reffert | 2023 | 0.14 | 0.55 | 0.71 | 52 | â | â | â | â |
MOCA


Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.