Theia 15
0.02
UTI
0.0
CN
1.0
Cdens
1.0
CC3
0.25
Clit
0.04
Cdup
Radius (P>50% members)
3.8 [arcmin]
- CN 0.0 Sparse
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.25 Poorly studied
- Cdup 0.04 Very likely duplicate
Overview
Theia 15 is a sparse, very dense object of very high C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is poorly studied 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
Moderate extinction
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 90.868 | -9.746 | 1.177 | -2.237 | 1.619 | 46.287 |
| Hunt & Reffert | 2024 | 90.882 | -9.742 | 1.187 | -2.145 | 1.551 | 37.499 |
| Cavallo et al. | 2024 | 90.895 | -9.784 | 1.181 | â | â | â |
| Hunt & Reffert | 2023 | 90.882 | -9.742 | 1.187 | -2.145 | 1.551 | 37.499 |
| He et al. | 2022 | 90.779 | -9.798 | 1.205 | -1.954 | 1.718 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 62* | â | â |
| Cavallo et al. | 2024 | 1.24 | 1.75 | â | 8 | -0.110 | â | â | â |
| Hunt & Reffert | 2023 | 0.80 | 1.35 | 1.54 | 6 | â | â | â | â |
| He et al. | 2022 | â | 0.05 | â | 3 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Bronze sample.