Theia 822
0.36
UTI
0.3
CN
1.0
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.1 [arcmin]
- CN 0.3 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 822 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
Relatively close
Moderate extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 322.135 | 48.39 | 0.697 | -2.109 | -3.643 | -5.036 |
| Hunt & Reffert | 2024 | 322.141 | 48.373 | 0.695 | -2.092 | -3.627 | -4.397 |
| Cavallo et al. | 2024 | 322.138 | 48.393 | 0.698 | â | â | â |
| Hunt & Reffert | 2023 | 322.141 | 48.373 | 0.695 | -2.092 | -3.627 | -4.397 |
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 | 191* | â | â |
| Cavallo et al. | 2024 | 1.42 | 1.53 | â | 245 | -0.010 | â | â | â |
| Hunt & Reffert | 2023 | 1.38 | 1.40 | 1.15 | 232 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.