Theia 29
0.11
UTI
0.62
CN
1.0
Cdens
1.0
CC3
0.0
Clit
0.22
Cdup
Stellar density (N50/rad)
13.1 [N/pc2]
- CN 0.62 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 0.22 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 29 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption and age parameters (see Parameters). It was recently reported in the literature.
â ī¸ Warning: This is 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 | 196.097 | -77.564 | 5.084 | -20.363 | -7.515 | 16.696 |
| Liu et al. | 2025 | 196.54 | -77.59 | 5.08 | -20.38 | -7.44 | 24.61 |
| Cavallo et al. | 2024 | 195.522 | -77.366 | 5.076 | â | â | â |
| Hunt & Reffert | 2023 | 196.541 | -77.585 | 5.078 | -20.381 | -7.441 | 24.606 |
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 | 0.28 | 3.49 | 2.1 | 18 | 0.340 | â | â | â |
| Liu et al. | 2025 | 0.40 | 0.93 | â | 17 | â | â | â | â |
| Cavallo et al. | 2024 | 0.28 | 3.58 | â | 105 | 0.340 | â | â | â |
| Hunt & Reffert | 2023 | 0.20 | 3.49 | 2.10 | 18 | â | â | â | â |
Liu et al. (2025)
Classified as primordial binary cluster 121 along with Chamaleon_I, and of multiple system 41 along with Chamaleon_I and HSC_2453.
Palma et al. (2025)
Part of multiple system G243, along with Chamaleon_I, HSC_2464, HSC_2458, HSC_2453 and HSC_2407.
Cavallo et al. (2024)
Wood sample.
Hunt & Reffert (2024)
Classified as a moving group.