Theia 1694
0.22
UTI
0.0
CN
0.34
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
7.1 [arcmin]
- CN 0.0 Sparse
- Cdens 0.34 Loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 1694 is a sparse, loose object of high C3 quality. Its parallax locates it at a relatively close* distance, near the mid-plane, affected by high extinction. It is catalogued as a very metal-poor, young cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~1.58 kpc) differs significantly from the median photometric distance (~2.33 kpc).
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.
Relatively close
High extinction
Very metal-poor
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 275.069 | -14.934 | 0.631 | 0.055 | -2.021 | â |
| Hunt & Reffert | 2024 | 275.082 | -15.018 | 0.636 | 0.042 | -2.029 | -0.795 |
| Cavallo et al. | 2024 | 275.06 | -14.811 | 0.635 | â | â | â |
| Hunt & Reffert | 2023 | 275.082 | -15.018 | 0.636 | 0.042 | -2.029 | -0.795 |
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 | 202* | â | â |
| Cavallo et al. | 2024 | 3.19 | 3.53 | â | 18 | -1.950 | â | â | â |
| Hunt & Reffert | 2023 | 1.48 | 2.77 | 2.31 | 27 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Bronze sample.