Theia 4690
0.01
UTI
0.31
CN
0.53
Cdens
0.5
CC3
0.25
Clit
0.03
Cdup
Radius (P>50% members)
3.8 [arcmin]
- CN 0.31 Poorly populated
- Cdens 0.53 Moderately dense
- CC3 0.5 Intermediate quality
- Clit 0.25 Poorly studied
- Cdup 0.03 Very likely duplicate
Overview
Theia 4690 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a moderate 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.
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
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 | 120.652 | -27.374 | 0.322 | -2.403 | 1.911 | â |
| Hu & Soubiran | 2025 | 120.582 | -27.376 | â | â | â | â |
| Hunt & Reffert | 2024 | 120.644 | -27.343 | 0.323 | -2.407 | 1.913 | â |
| Cavallo et al. | 2024 | 120.582 | -27.376 | 0.324 | â | â | â |
| Hunt & Reffert | 2023 | 120.644 | -27.343 | 0.323 | -2.407 | 1.913 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.170* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 239* | â | â |
| Cavallo et al. | 2024 | 2.67 | 0.88 | â | 537 | -0.040 | â | â | â |
| Hunt & Reffert | 2023 | 2.72 | 0.41 | 0.67 | 570 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.