HSC 990
0.31
UTI
0.43
CN
0.36
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
3.0 [arcmin]
- CN 0.43 Poorly populated
- Cdens 0.36 Loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 990 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by high extinction. It is catalogued as a 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.
Very distant
High extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 16.068 | 67.369 | 0.178 | -2.075 | -0.092 | -58.561 |
| Hunt & Reffert | 2024 | 16.057 | 67.407 | 0.183 | -2.082 | -0.092 | -58.631 |
| Cavallo et al. | 2024 | 16.06 | 67.365 | 0.184 | â | â | â |
| Hunt & Reffert | 2023 | 16.057 | 67.407 | 0.183 | -2.082 | -0.092 | -58.631 |
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 | 947* | â | â |
| Cavallo et al. | 2024 | 5.40 | 3.23 | â | 91 | -0.290 | â | â | â |
| Hunt & Reffert | 2023 | 5.43 | 3.12 | 1.53 | 97 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.