Theia 569
0.25
UTI
0.0
CN
0.49
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
14.3 [arcmin]
- CN 0.0 Sparse
- Cdens 0.49 Loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 569 is a sparse, loose object of high C3 quality. Its parallax locates it at a close distance, near 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 metallicity parameter (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.
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 | 72.555 | 44.822 | 1.327 | 2.039 | -6.361 | 3.863 |
| Zhang et al. | 2024 | 72.402 | 44.833 | â | â | â | â |
| Cavallo et al. | 2024 | 72.558 | 44.692 | 1.328 | â | â | â |
| Hunt & Reffert | 2023 | 72.402 | 44.833 | 1.319 | 2.072 | -6.377 | 0.714 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | -0.316* | â | â | â |
| Cavallo et al. | 2024 | 0.75 | 0.89 | â | 275 | 0.320 | â | â | â |
| Hunt & Reffert | 2023 | 0.70 | 1.06 | 0.61 | 236 | 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.