Theia 649
0.07
UTI
0.0
CN
0.12
Cdens
0.25
CC3
0.0
Clit
0.96
Cdup
Radius (P>50% members)
31.5 [arcmin]
- CN 0.0 Sparse
- Cdens 0.12 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 0.96 Unique
Overview
Theia 649 is a sparse, very loose object of low C3 quality. Its parallax locates it at a close distance, below 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 is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=0.96) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
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 | 112.559 | -51.369 | 1.529 | -4.386 | 8.451 | 12.832 |
| Cavallo et al. | 2024 | 111.03 | -51.659 | 1.576 | â | â | â |
| Hunt & Reffert | 2023 | 112.775 | -51.328 | 1.573 | -4.37 | 8.422 | 14.448 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 0.63 | 0.45 | â | 148 | 0.290 | â | â | â |
| Hunt & Reffert | 2023 | 0.61 | 0.19 | 0.68 | 128 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.