HSC 1054
0.17
UTI
0.25
CN
0.09
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
67.4 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.09 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1054 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a very close distance, below 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.
Very 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 | 22.889 | 49.455 | 2.642 | 9.017 | -8.313 | 0.395 |
| Zhang et al. | 2024 | 23.944 | 49.146 | â | â | â | â |
| Cavallo et al. | 2024 | 23.33 | 49.404 | 2.662 | â | â | â |
| Hunt & Reffert | 2023 | 23.944 | 49.146 | 2.659 | 9.006 | -8.318 | 3.075 |
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 | -0.145* | â | â | â |
| Cavallo et al. | 2024 | 0.37 | 0.51 | â | 98 | 0.070 | â | â | â |
| Hunt & Reffert | 2023 | 0.36 | 0.15 | 0.34 | 155 | 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.