HSC 290
0.28
UTI
0.66
CN
0.16
Cdens
0.62
CC3
0.0
Clit
0.98
Cdup
Radius (P>50% members)
5.0 [arcmin]
- CN 0.66 Moderately populated
- Cdens 0.16 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 0.98 Unique
Overview
HSC 290 is a moderately populated, very loose object of intermediate C3 quality. Its parallax locates it at a large* distance, above the mid-plane, affected by high extinction. It is catalogued as an extremely massive, near-solar metallicity, old cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~6.95 kpc) differs significantly from the median photometric distance (~5.32 kpc).
Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.
Very distant
High extinction
Extremely massive
Near-solar metallicity
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 278.975 | -2.338 | 0.144 | -2.538 | -5.41 | 40.949 |
| Hunt & Reffert | 2024 | 278.966 | -2.335 | 0.143 | -2.586 | -5.448 | 45.177 |
| Cavallo et al. | 2024 | 278.957 | -2.37 | 0.147 | â | â | â |
| Hunt & Reffert | 2023 | 278.966 | -2.335 | 0.143 | -2.586 | -5.448 | 45.177 |
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 | 10123* | â | â |
| Cavallo et al. | 2024 | 5.40 | 3.89 | â | 2570 | -0.100 | â | â | â |
| Hunt & Reffert | 2023 | 5.23 | 5.20 | 2.99 | 1972 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.