Theia 1232
0.11
UTI
0.0
CN
0.03
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
24
Core radius and density
2.9 [pc], 0.1 [pc-2]
- CN 0.0 Sparse
- Cdens 0.03 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 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 1232 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as an intermediate-age 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 | 350.412 | 60.566 | 2.744 | 7.892 | -3.404 | -11.296 |
| Hunt & Reffert | 2023 | 350.433 | 60.561 | 2.72 | 7.987 | -3.488 | -19.652 |
| Kounkel & Covey | 2019 | 352.031 | 60.301 | 1.754 | â | â | -4.755 |
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 | 0.46 | 0.82 | 0.69 | 631 | â | â | â | â |
| Hunt & Reffert | 2023 | 0.35 | 1.02 | 0.69 | 15 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.57 | 0.62 | â | 1247 | â | â | â | â |
Palma et al. (2025)
Classified as optical pair P531, along with HSC_873.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.93 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.93 (50th percentile).