HSC 2640
0.16
UTI
0.0
CN
1.0
Cdens
1.0
CC3
0.25
Clit
0.32
Cdup
Radius (P>50% members)
1.2 [arcmin]
- CN 0.0 Sparse
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.25 Poorly studied
- Cdup 0.32 Possibly duplicate
Overview
HSC 2640 is a sparse, very dense object of very high 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 (see Parameters). It was recently reported in the literature.
â ī¸ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.
Distant
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 | 212.904 | -61.707 | 0.244 | -5.508 | -2.121 | -67.033 |
| Hu & Soubiran | 2025 | 212.938 | -61.708 | â | â | â | â |
| Hunt & Reffert | 2024 | 212.923 | -61.716 | 0.211 | -5.507 | -2.107 | -68.424 |
| Cavallo et al. | 2024 | 212.938 | -61.708 | 0.21 | â | â | â |
| Hunt & Reffert | 2023 | 212.923 | -61.716 | 0.211 | -5.507 | -2.107 | -68.424 |
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 | 859* | â | â |
| Cavallo et al. | 2024 | 4.83 | 4.47 | â | 794 | 0.160 | â | â | â |
| Hunt & Reffert | 2023 | 3.90 | 5.18 | 1.23 | 444 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.