Theia 1829
0.01
UTI
0.25
CN
0.99
Cdens
0.5
CC3
0.0
Clit
0.04
Cdup
Stellar density (N50/rad)
5.0 [N/pc2]
- CN 0.25 Poorly populated
- Cdens 0.99 Very dense
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 0.04 Very likely 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 1829 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, intermediate-age cluster (see Parameters). It was recently reported 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 278.19 | -13.003 | 0.947 | 0.623 | -3.792 | -16.499 |
| Hunt & Reffert | 2024 | 278.214 | -13.019 | 0.945 | 0.618 | -3.807 | -8.878 |
| Cavallo et al. | 2024 | 278.207 | -13.041 | 0.949 | â | â | â |
| Hunt & Reffert | 2023 | 278.214 | -13.019 | 0.945 | 0.618 | -3.807 | -8.878 |
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 | 0.925 | 1.265 | 0.46 | 160 | -0.550 | 119 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 119(1) | â | â |
| Cavallo et al. | 2024 | 0.84 | 1.41 | â | 195 | -0.550 | â | â | â |
| Hunt & Reffert | 2023 | 1.01 | 1.12 | 0.46 | 126 | 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 P169, along with Theia_984.
Cavallo et al. (2024)
Gold sample.