Theia 1224
0.10
UTI
0.0
CN
0.27
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
25.7 [arcmin]
- CN 0.0 Sparse
- Cdens 0.27 Loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 1224 is a sparse, loose object of low C3 quality. Its parallax locates it at a 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.
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 | 219.189 | -55.18 | 1.816 | -13.302 | -7.746 | -37.563 |
| Hu & Soubiran | 2025 | 219.481 | -54.965 | â | â | â | â |
| Cavallo et al. | 2024 | 219.481 | -54.965 | 1.838 | â | â | â |
| Hunt & Reffert | 2023 | 219.545 | -55.165 | 1.849 | -13.184 | -7.748 | -32.857 |
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 | -0.210* | â | â | â |
| Cavallo et al. | 2024 | 0.53 | 0.78 | â | 1000 | -0.170 | â | â | â |
| Hunt & Reffert | 2023 | 0.52 | 0.84 | 0.90 | 353 | 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.