Theia 80
0.27
UTI
0.0
CN
0.37
Cdens
1.0
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
1.4 [pc], 1.8 [pc-2]
- CN 0.0 Sparse
- Cdens 0.37 Loose
- CC3 1.0 Very high 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 80 is a sparse, loose object of very high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a very young cluster (see Parameters). It is rarely studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 123.915 | -35.638 | 1.858 | -5.656 | 6.172 | 24.635 |
| Hunt & Reffert | 2023 | 123.858 | -35.647 | 1.857 | -5.709 | 6.161 | 24.141 |
| Kounkel & Covey | 2019 | 123.784 | -35.63 | 2.097 | â | â | 10.824 |
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 | 0.495 | 0.22 | 0.35 | 19 | â | â | â | â |
| Hunt & Reffert | 2023 | 0.52 | 0.13 | 0.35 | 12 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.47 | 0.31 | â | 26 | â | â | â | â |
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.87 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.87 (50th percentile).