HSC 284
0.39
UTI
0.31
CN
1.0
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
2.1 [arcmin]
- CN 0.31 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 284 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, near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Distant
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 | 280.295 | -3.908 | 0.252 | -1.515 | -3.945 | 57.61 |
| Hunt & Reffert | 2024 | 280.303 | -3.911 | 0.253 | -1.497 | -3.958 | 57.411 |
| Cavallo et al. | 2024 | 280.294 | -3.909 | 0.255 | â | â | â |
| Hunt & Reffert | 2023 | 280.303 | -3.911 | 0.253 | -1.497 | -3.958 | 57.411 |
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 | 1200* | â | â |
| Cavallo et al. | 2024 | 4.83 | 4.60 | â | 16 | 0.280 | â | â | â |
| Hunt & Reffert | 2023 | 3.29 | 4.65 | 2.43 | 115 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.