Theia 1432
0.16
UTI
0.0
CN
0.03
Cdens
0.5
CC3
0.13
Clit
1.0
Cdup
Nm (P>50%)
22
Core radius and density
5.0 [pc], 0.2 [pc-2]
- CN 0.0 Sparse
- Cdens 0.03 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.13 Rarely studied
- Cdup 1.0 Unique
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 1432 is a sparse, very loose object of intermediate 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, old cluster (see Parameters). It is rarely studied 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 35.944 | 54.163 | 1.449 | -0.487 | 1.155 | 21.053 |
| Hu & Soubiran | 2025 | 36.32 | 54.108 | â | â | â | â |
| Yang et al. | 2025 | 35.673 | 54.257 | â | â | â | â |
| Zhang et al. | 2024 | 35.673 | 54.257 | â | â | â | â |
| Cavallo et al. | 2024 | 36.32 | 54.108 | 1.435 | â | â | â |
| Hunt & Reffert | 2023 | 35.673 | 54.257 | 1.429 | -0.476 | 1.117 | 17.13 |
| Kounkel & Covey | 2019 | 37.484 | 53.786 | 1.423 | â | â | 21.006 |
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 | 0.7 | 0.36 | 0.27 | 1742 | -0.210 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.230(5) | â | â | â |
| Yang et al. | 2025 | â | â | â | 1738 | -0.190(3) | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.311(1) | â | â | â |
| Cavallo et al. | 2024 | 0.72 | 0.70 | â | 1549 | -0.130 | â | â | â |
| Hunt & Reffert | 2023 | 0.65 | 0.20 | 0.27 | 1746 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.70 | 0.36 | â | 1780 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G250, along with Theia_863, Theia_862 and Trumpler_2.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).