HSC 103
0.12
UTI
0.25
CN
0.21
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
166.9 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.21 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 103 is a poorly populated, very loose object of very 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 metal-rich, 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
Metal-rich
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 269.526 | -21.999 | 9.904 | -6.593 | -39.598 | -10.083 |
| Cavallo et al. | 2024 | 271.179 | -22.524 | 9.96 | â | â | â |
| Hunt & Reffert | 2023 | 269.21 | -22.05 | 9.96 | -6.15 | -39.558 | 9.598 |
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 | 0.09 | 1.15 | â | 170 | 0.510 | â | â | â |
| Hunt & Reffert | 2023 | 0.10 | 0.28 | 0.63 | 4 | â | â | â | â |


Cavallo et al. (2024)
Bronze sample.
Hunt & Reffert (2024)
Classified as a moving group.