Theia 925
0.09
UTI
0.0
CN
0.09
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
57.3 [arcmin]
- CN 0.0 Sparse
- Cdens 0.09 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 925 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close distance, above 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.
Very 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 | 97.031 | 35.775 | 2.418 | -3.32 | -1.747 | -12.738 |
| Zhang et al. | 2024 | 96.032 | 35.742 | â | â | â | â |
| Cavallo et al. | 2024 | 97.175 | 35.055 | 2.412 | â | â | â |
| Hunt & Reffert | 2023 | 96.032 | 35.742 | 2.407 | -3.406 | -1.805 | -13.703 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | 0.083* | â | â | â |
| Cavallo et al. | 2024 | 0.42 | 0.35 | â | 347 | 0.200 | â | â | â |
| Hunt & Reffert | 2023 | 0.40 | 0.11 | 0.53 | 159 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.