Theia 1891
0.04
UTI
0.64
CN
1.0
Cdens
0.75
CC3
0.0
Clit
0.09
Cdup
Radius (P>50% members)
9.8 [arcmin]
- CN 0.64 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 0.09 Very likely duplicate
Overview
Theia 1891 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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.
Relatively close
Moderate 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 | 257.778 | -48.749 | 0.847 | -0.525 | -0.869 | 19.47 |
| Hunt & Reffert | 2024 | 257.763 | -48.731 | 0.857 | -0.565 | -0.912 | 3.964 |
| Cavallo et al. | 2024 | 257.818 | -48.807 | 0.856 | â | â | â |
| Hunt & Reffert | 2023 | 257.763 | -48.731 | 0.857 | -0.565 | -0.912 | 3.964 |
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 | 431* | â | â |
| Cavallo et al. | 2024 | 1.15 | 1.07 | â | 316 | 0.340 | â | â | â |
| Hunt & Reffert | 2023 | 1.11 | 1.13 | 1.13 | 134 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.