Theia 280
0.14
UTI
0.25
CN
0.26
Cdens
0.75
CC3
0.25
Clit
0.4
Cdup
Radius (P>50% members)
17.9 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.26 Loose
- CC3 0.75 High quality
- Clit 0.25 Poorly studied
- Cdup 0.4 Possibly duplicate
Overview
Theia 280 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a low-mass, 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.
â ī¸ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.
Close
Low extinction
Low mass
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 | 341.031 | 49.456 | 1.192 | -1.756 | -5.466 | -12.732 |
| Zhang et al. | 2024 | 340.739 | 49.347 | â | â | â | â |
| Hunt & Reffert | 2024 | 340.739 | 49.347 | 1.199 | -1.66 | -5.312 | -13.927 |
| Cavallo et al. | 2024 | 342.431 | 50.008 | 1.198 | â | â | â |
| Hunt & Reffert | 2023 | 340.739 | 49.347 | 1.199 | -1.66 | -5.312 | -13.927 |
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 | -0.025* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 45* | â | â |
| Cavallo et al. | 2024 | 0.83 | 0.43 | â | 191 | 0.540 | â | â | â |
| Hunt & Reffert | 2023 | 0.80 | 0.26 | 0.68 | 160 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.