HSC 1921
0.15
UTI
0.26
CN
0.14
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
37.4 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.14 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1921 is a poorly populated, 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, 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
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 | 113.161 | -25.722 | 1.769 | -5.88 | 3.625 | 24.017 |
| Cavallo et al. | 2024 | 113.04 | -26.032 | 1.81 | â | â | â |
| Hunt & Reffert | 2023 | 113.301 | -25.868 | 1.807 | -5.867 | 3.701 | 22.399 |
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 | 0.57 | 0.48 | â | 31 | 0.010 | â | â | â |
| Hunt & Reffert | 2023 | 0.52 | 0.07 | 0.43 | 123 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.