Theia 5422
0.04
UTI
0.77
CN
0.84
Cdens
1.0
CC3
0.25
Clit
0.06
Cdup
Radius (P>50% members)
3.8 [arcmin]
- CN 0.77 Rich
- Cdens 0.84 Dense
- CC3 1.0 Very high quality
- Clit 0.25 Poorly studied
- Cdup 0.06 Very likely duplicate
Overview
Theia 5422 is a rich, dense object of very high C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.
â ī¸ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.
Distant
High extinction
Massive
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 | 314.313 | 46.451 | 0.184 | -2.942 | -3.592 | -35.479 |
| Hu & Soubiran | 2025 | 314.289 | 46.439 | â | â | â | â |
| Hunt & Reffert | 2024 | 314.336 | 46.48 | 0.174 | -2.941 | -3.601 | -45.883 |
| Cavallo et al. | 2024 | 314.289 | 46.439 | 0.175 | â | â | â |
| Hunt & Reffert | 2023 | 314.336 | 46.48 | 0.174 | -2.941 | -3.601 | -45.883 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.380* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 3336* | â | â |
| Cavallo et al. | 2024 | 4.53 | 3.40 | â | 631 | -0.040 | â | â | â |
| Hunt & Reffert | 2023 | 4.83 | 3.73 | 2.59 | 299 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.