Theia 70
0.48
UTI
0.52
CN
1.0
Cdens
0.75
CC3
0.08
Clit
1.0
Cdup
Stellar density (N50/rad)
6.1 [N/pc2]
- CN 0.52 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.08 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 70 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is rarely studied in the literature.
Note: This object shares a large percentage of members with a later 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 | 257.214 | -18.019 | 4.774 | -5.655 | -11.507 | -18.62 |
| Swiggum et al. | 2024 | 257.117 | -18.209 | 4.764 | -5.645 | -11.39 | -15.926 |
| Cavallo et al. | 2024 | 257.315 | -17.624 | 4.762 | â | â | â |
| Hunt & Reffert | 2023 | 257.117 | -18.209 | 4.764 | -5.645 | -11.39 | -19.68 |
| Kounkel & Covey | 2019 | 257.243 | -17.317 | 4.788 | â | â | 3.511 |
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 | 0.21 | 0.59 | 1.16 | 16 | 0.190 | 62 | â | â |
| Swiggum et al. | 2024 | 0.21 | â | â | 16 | â | 62 | â | â |
| Cavallo et al. | 2024 | 0.21 | 0.86 | â | 15 | 0.190 | â | â | â |
| Hunt & Reffert | 2023 | 0.21 | 0.49 | 1.16 | 16 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.21 | 0.59 | â | 26 | â | â | â | â |
Palma et al. (2025)
Part of multiple system G204, along with Mamajek_2 and HSC_95.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.97 (50th percentile).