HSC 225
0.22
UTI
0.0
CN
0.35
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
2.6 [arcmin]
- CN 0.0 Sparse
- Cdens 0.35 Loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 225 is a sparse, loose object of 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, metal-rich, intermediate-age cluster (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.
Distant
Very high extinction
Massive
Metal-rich
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 277.743 | -10.521 | 0.228 | -1.652 | -3.824 | 18.247 |
| Hunt & Reffert | 2024 | 277.739 | -10.533 | 0.223 | -1.628 | -3.771 | 83.183 |
| Cavallo et al. | 2024 | 277.551 | -10.483 | 0.225 | â | â | â |
| Hunt & Reffert | 2023 | 277.739 | -10.533 | 0.223 | -1.628 | -3.771 | 83.183 |
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 | 2651* | â | â |
| Cavallo et al. | 2024 | 3.60 | 5.08 | â | 12 | 0.510 | â | â | â |
| Hunt & Reffert | 2023 | 3.87 | 6.02 | 2.48 | 362 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Wood sample.