Theia 6166
0.14
UTI
0.0
CN
0.09
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
11.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.09 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 6166 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, 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.
Relatively close
Low 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 | 329.268 | 50.276 | 0.542 | -1.444 | -1.336 | -23.962 |
| Hunt & Reffert | 2024 | 329.284 | 50.179 | 0.551 | -1.466 | -1.344 | -26.888 |
| Cavallo et al. | 2024 | 328.44 | 50.243 | 0.554 | â | â | â |
| Hunt & Reffert | 2023 | 329.284 | 50.179 | 0.551 | -1.466 | -1.344 | -26.888 |
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 | 81* | â | â |
| Cavallo et al. | 2024 | 1.71 | 0.82 | â | 316 | 0.210 | â | â | â |
| Hunt & Reffert | 2023 | 1.72 | 0.53 | 0.99 | 340 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.