HSC 2847
0.06
UTI
0.0
CN
0.07
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
8.4 [arcmin]
- CN 0.0 Sparse
- Cdens 0.07 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2847 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, well above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very 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.
Distant
Moderate extinction
Near-solar metallicity
Very old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 243.619 | -34.244 | 0.316 | -1.304 | -2.667 | 4.933 |
| Hu & Soubiran | 2025 | 243.564 | -34.288 | â | â | â | â |
| Cavallo et al. | 2024 | 243.564 | -34.288 | 0.308 | â | â | â |
| Hunt & Reffert | 2023 | 243.637 | -34.232 | 0.305 | -1.246 | -2.63 | â |
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 | -0.190* | â | â | â |
| Cavallo et al. | 2024 | 3.19 | 1.15 | â | 6918 | 0.120 | â | â | â |
| Hunt & Reffert | 2023 | 3.01 | 0.86 | 0.53 | 6039 | 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.