HSC 478
0.07
UTI
0.0
CN
0.11
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
19.9 [arcmin]
- CN 0.0 Sparse
- Cdens 0.11 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 478 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by moderate 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.
Relatively close
Moderate 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 | 298.568 | 21.072 | 0.858 | -0.487 | -4.539 | 2.81 |
| Hunt & Reffert | 2024 | 298.538 | 21.018 | 0.847 | -0.499 | -4.519 | 7.391 |
| Cavallo et al. | 2024 | 298.624 | 21.121 | 0.853 | â | â | â |
| Hunt & Reffert | 2023 | 298.538 | 21.018 | 0.847 | -0.499 | -4.519 | 7.391 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 90* | â | â |
| Cavallo et al. | 2024 | 1.19 | 1.18 | â | 18 | -0.060 | â | â | â |
| Hunt & Reffert | 2023 | 1.12 | 0.87 | 1.99 | 32 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.