HSC 268
0.40
UTI
0.35
CN
1.0
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
2.2 [arcmin]
- CN 0.35 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 268 is a poorly populated, very dense object of intermediate 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-poor, young cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~3.84 kpc) differs significantly from the median photometric distance (~2.90 kpc).
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Relatively close
High extinction
Massive
Metal-poor
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 280.14 | -5.324 | 0.26 | -0.221 | -1.871 | 48.887 |
| Hunt & Reffert | 2024 | 280.146 | -5.325 | 0.268 | -0.218 | -1.88 | 62.716 |
| Cavallo et al. | 2024 | 280.127 | -5.338 | 0.262 | â | â | â |
| Hunt & Reffert | 2023 | 280.146 | -5.325 | 0.268 | -0.218 | -1.88 | 62.716 |
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 | 1101* | â | â |
| Cavallo et al. | 2024 | 2.49 | 5.54 | â | 11 | -0.610 | â | â | â |
| Hunt & Reffert | 2023 | 3.31 | 4.01 | 3.08 | 47 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.