Theia 589
0.15
UTI
0.0
CN
0.23
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
16.9 [arcmin]
- CN 0.0 Sparse
- Cdens 0.23 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 589 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, near 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: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
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 | 268.614 | -22.192 | 1.077 | 2.983 | -0.666 | -16.088 |
| Hunt & Reffert | 2024 | 268.657 | -22.007 | 1.069 | 2.972 | -0.653 | -50.763 |
| Cavallo et al. | 2024 | 268.623 | -22.284 | 1.07 | â | â | â |
| Hunt & Reffert | 2023 | 268.657 | -22.007 | 1.069 | 2.972 | -0.653 | -50.763 |
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 | 60* | â | â |
| Cavallo et al. | 2024 | 1.06 | 1.21 | â | 219 | -0.100 | â | â | â |
| Hunt & Reffert | 2023 | 0.86 | 1.45 | 0.56 | 62 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.