HSC 2270
0.24
UTI
0.25
CN
0.18
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
48.2 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.18 Very loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2270 is a poorly populated, very loose object of high 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.
Very close
Low extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 143.066 | -58.558 | 2.655 | -16.696 | 4.79 | 12.432 |
| Cavallo et al. | 2024 | 143.052 | -58.782 | 2.653 | â | â | â |
| Hunt & Reffert | 2023 | 142.62 | -58.516 | 2.646 | -16.713 | 4.625 | 9.642 |
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 | 0.37 | 0.53 | â | 33 | 0.400 | â | â | â |
| Hunt & Reffert | 2023 | 0.36 | 0.38 | 0.73 | 47 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.