Theia 5431
0.15
UTI
0.0
CN
0.13
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
11.2 [arcmin]
- CN 0.0 Sparse
- Cdens 0.13 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 5431 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively 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.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
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.
Relatively 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 | 128.42 | -34.578 | 0.568 | -4.548 | 3.291 | 32.896 |
| Hunt & Reffert | 2024 | 128.431 | -34.572 | 0.569 | -4.548 | 3.282 | 12.442 |
| Cavallo et al. | 2024 | 128.008 | -34.206 | 0.571 | â | â | â |
| Hunt & Reffert | 2023 | 128.431 | -34.572 | 0.569 | -4.548 | 3.282 | 12.442 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 52* | â | â |
| Cavallo et al. | 2024 | 1.70 | 0.72 | â | 372 | 0.260 | â | â | â |
| Hunt & Reffert | 2023 | 1.64 | 0.48 | 1.26 | 282 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.