Theia 1024
0.20
UTI
0.0
CN
0.75
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
17.3 [arcmin]
- CN 0.0 Sparse
- Cdens 0.75 Dense
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 1024 is a sparse, dense 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, but with a large variance across recent sources for the absorption and age parameters (see Parameters). It is rarely studied 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 | 134.126 | -38.145 | 1.988 | -5.39 | 5.399 | 21.342 |
| Cavallo et al. | 2024 | 133.937 | -38.332 | 1.958 | â | â | â |
| Hunt & Reffert | 2023 | 134.102 | -38.08 | 1.95 | -5.388 | 5.418 | 22.91 |
| He et al. | 2022 | 134.097 | -38.085 | 2.001 | -5.317 | 5.341 | â |
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 | 0.51 | 0.57 | â | 123 | -0.330 | â | â | â |
| Hunt & Reffert | 2023 | 0.49 | 0.08 | 0.48 | 526 | â | â | â | â |
| He et al. | 2022 | â | 0.20 | â | 447 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.