HSC 147
0.08
UTI
0.0
CN
0.15
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
33.2 [arcmin]
- CN 0.0 Sparse
- Cdens 0.15 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 147 is a sparse, very loose object of low C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a metal-poor, old cluster, but with a large variance across recent sources for the metallicity parameter (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
Metal-poor
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 287.238 | -26.01 | 1.799 | -1.951 | -7.952 | 4.875 |
| Hu & Soubiran | 2025 | 286.828 | -25.667 | â | â | â | â |
| Cavallo et al. | 2024 | 286.828 | -25.667 | 1.803 | â | â | â |
| Hunt & Reffert | 2023 | 287.278 | -26.021 | 1.805 | -2.019 | -7.974 | 7.222 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.220* | â | â | â |
| Cavallo et al. | 2024 | 0.52 | 0.91 | â | 1288 | -0.890 | â | â | â |
| Hunt & Reffert | 2023 | 0.52 | 0.27 | 0.24 | 1045 | 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.