HSC 2866
0.55
UTI
0.76
CN
1.0
Cdens
1.0
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
1.8 [arcmin]
- CN 0.76 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2866 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 very high extinction. It is catalogued as a massive, near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~4.63 kpc) differs significantly from the median photometric distance (~3.25 kpc).
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Distant
Very high extinction
Massive
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 258.194 | -39.994 | 0.216 | -0.808 | -2.276 | -35.071 |
| Hunt & Reffert | 2024 | 258.189 | -39.998 | 0.225 | -0.809 | -2.278 | -26.632 |
| Cavallo et al. | 2024 | 258.21 | -39.987 | 0.227 | â | â | â |
| Hunt & Reffert | 2023 | 258.189 | -39.998 | 0.225 | -0.809 | -2.278 | -26.632 |
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 | 4420* | â | â |
| Cavallo et al. | 2024 | 2.70 | 5.41 | â | 83 | -0.050 | â | â | â |
| Hunt & Reffert | 2023 | 3.80 | 4.77 | 2.75 | 31 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.