HSC 2639
0.44
UTI
0.76
CN
1.0
Cdens
1.0
CC3
0.0
Clit
0.8
Cdup
Radius (P>50% members)
3.5 [arcmin]
- CN 0.76 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 0.8 Very likely unique
Overview
HSC 2639 is a rich, 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 massive, metal-rich, very young cluster (see Parameters). It was recently reported in the literature.
Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.
Distant
High extinction
Massive
Metal-rich
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 213.026 | -62.036 | 0.241 | -6.05 | -2.369 | -39.078 |
| Hunt & Reffert | 2024 | 213.062 | -62.041 | 0.241 | -6.042 | -2.357 | -47.287 |
| Cavallo et al. | 2024 | 212.892 | -62.047 | 0.242 | â | â | â |
| Hunt & Reffert | 2023 | 213.062 | -62.041 | 0.241 | -6.042 | -2.357 | -47.287 |
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 | 4867* | â | â |
| Cavallo et al. | 2024 | 3.84 | 4.40 | â | 14 | 0.770 | â | â | â |
| Hunt & Reffert | 2023 | 3.73 | 4.63 | 2.89 | 15 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Bronze sample.