HSC 1020
0.15
UTI
0.25
CN
0.11
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
86.4 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.11 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1020 is a poorly populated, very loose object of low 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 | 25.035 | 48.331 | 3.686 | 18.46 | -11.056 | -4.464 |
| Zhang et al. | 2024 | 18.975 | 48.669 | â | â | â | â |
| Cavallo et al. | 2024 | 24.215 | 48.057 | 3.714 | â | â | â |
| Hunt & Reffert | 2023 | 18.975 | 48.669 | 3.71 | 18.487 | -10.793 | 0.618 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | 0.053* | â | â | â |
| Cavallo et al. | 2024 | 0.28 | 0.65 | â | 31 | 0.210 | â | â | â |
| Hunt & Reffert | 2023 | 0.26 | 0.15 | 0.29 | 34 | 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.