Theia 12
0.20
UTI
0.67
CN
1.0
Cdens
0.75
CC3
0.0
Clit
0.42
Cdup
Stellar density (N50/rad)
8.0 [N/pc2]
- CN 0.67 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 0.42 Possibly duplicate
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
Theia 12 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster (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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 281.947 | -2.396 | 1.584 | 0.222 | -6.238 | 6.148 |
| Hunt & Reffert | 2024 | 282.102 | -2.382 | 1.569 | 0.139 | -6.178 | 6.12 |
| Cavallo et al. | 2024 | 281.825 | -2.246 | 1.571 | â | â | â |
| Hunt & Reffert | 2023 | 282.102 | -2.382 | 1.569 | 0.139 | -6.178 | 6.12 |
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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 0.65 | 3.52 | 2.91 | 6 | 0.080 | 262 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 262(1) | â | â |
| Cavallo et al. | 2024 | 0.69 | 3.85 | â | 7 | 0.080 | â | â | â |
| Hunt & Reffert | 2023 | 0.61 | 3.19 | 2.91 | 5 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair (not dynamically associated) P168, along with UPK_38.
Cavallo et al. (2024)
Silver sample.