Theia 1156
0.09
UTI
0.0
CN
0.09
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
30.8 [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 1156 is a sparse, very 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, young 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
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 236.184 | -43.549 | 1.273 | -2.382 | -6.691 | -22.94 |
| Cavallo et al. | 2024 | 235.055 | -43.714 | 1.271 | â | â | â |
| Hunt & Reffert | 2023 | 236.243 | -43.605 | 1.258 | -2.446 | -6.678 | -18.463 |
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 | 0.82 | 0.50 | â | 52 | 0.360 | â | â | â |
| Hunt & Reffert | 2023 | 0.74 | 0.68 | 0.40 | 114 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.