HSC 2678
0.24
UTI
0.0
CN
0.47
Cdens
0.25
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
4.2 [arcmin]
- CN 0.0 Sparse
- Cdens 0.47 Loose
- CC3 0.25 Low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 2678 is a sparse, loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age 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.
Relatively close
High 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 | 226.591 | -59.29 | 0.399 | -5.244 | -2.406 | -46.976 |
| Hu & Soubiran | 2025 | 226.566 | -59.285 | â | â | â | â |
| Hunt & Reffert | 2024 | 226.503 | -59.291 | 0.4 | -5.235 | -2.406 | -37.058 |
| Cavallo et al. | 2024 | 226.566 | -59.285 | 0.399 | â | â | â |
| Hunt & Reffert | 2023 | 226.503 | -59.291 | 0.4 | -5.235 | -2.406 | -37.058 |
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 | -0.210* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 389* | â | â |
| Cavallo et al. | 2024 | 2.44 | 4.31 | â | 1023 | -0.590 | â | â | â |
| Hunt & Reffert | 2023 | 2.25 | 4.12 | 0.65 | 906 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.