Theia 358
0.15
UTI
0.0
CN
0.13
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
21.5 [arcmin]
- CN 0.0 Sparse
- Cdens 0.13 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 358 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a 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.
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 | 190.529 | -69.379 | 1.042 | -4.46 | -2.048 | 2.26 |
| Cavallo et al. | 2024 | 191.3 | -69.317 | 1.038 | â | â | â |
| Hunt & Reffert | 2023 | 190.506 | -69.458 | 1.038 | -4.505 | -2.095 | -2.195 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 0.93 | 0.49 | â | 209 | 0.170 | â | â | â |
| Hunt & Reffert | 2023 | 0.92 | 0.43 | 0.79 | 121 | â | â | â | â |


Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.