HSC 1807
0.09
UTI
0.0
CN
0.1
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
31.3 [arcmin]
- CN 0.0 Sparse
- Cdens 0.1 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1807 is a sparse, very loose object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, 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
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 108.188 | -15.181 | 1.365 | -4.32 | -0.871 | 22.016 |
| Hu & Soubiran | 2025 | 108.325 | -14.963 | â | â | â | â |
| Cavallo et al. | 2024 | 108.325 | -14.963 | 1.407 | â | â | â |
| Hunt & Reffert | 2023 | 108.304 | -15.157 | 1.409 | -4.392 | -0.841 | 21.37 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.230* | â | â | â |
| Cavallo et al. | 2024 | 0.70 | 0.50 | â | 676 | -0.310 | â | â | â |
| Hunt & Reffert | 2023 | 0.67 | 0.17 | 0.49 | 195 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.