HSC 789
0.17
UTI
0.0
CN
0.2
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
17.6 [arcmin]
- CN 0.0 Sparse
- Cdens 0.2 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 789 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very 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.
Close
Moderate extinction
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 329.157 | 59.126 | 1.093 | -1.947 | -3.748 | -13.408 |
| Cavallo et al. | 2024 | 329.173 | 59.181 | 1.101 | â | â | â |
| Hunt & Reffert | 2023 | 329.122 | 58.91 | 1.099 | -1.933 | -3.768 | -19.074 |
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 | 0.89 | 1.84 | â | 6 | 0.020 | â | â | â |
| Hunt & Reffert | 2023 | 0.86 | 1.62 | 1.31 | 5 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.