Theia 766
0.16
UTI
0.0
CN
0.07
Cdens
0.62
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
11
Core radius and density
3.1 [pc], 0.3 [pc-2]
- CN 0.0 Sparse
- Cdens 0.07 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.06 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 766 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a low-mass, metal-poor, 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 | 270.535 | -37.718 | 1.428 | -0.644 | -4.702 | -11.812 |
| Hunt & Reffert | 2024 | 270.382 | -38.012 | 1.42 | -0.546 | -4.674 | -9.558 |
| Cavallo et al. | 2024 | 270.302 | -37.884 | 1.423 | â | â | â |
| Hunt & Reffert | 2023 | 270.382 | -38.012 | 1.42 | -0.546 | -4.674 | -9.558 |
| Kounkel & Covey | 2019 | 270.271 | -37.802 | 1.274 | â | â | -14.223 |
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 | 0.65 | 0.27 | 0.34 | 531 | -0.700 | 41 | â | â |
| Hunt & Reffert | 2024 | 0.65 | 0.09 | 0.34 | 699 | â | 41(1) | â | â |
| Cavallo et al. | 2024 | 0.64 | 0.56 | â | 363 | -0.700 | â | â | â |
| Hunt & Reffert | 2023 | 0.65 | 0.09 | 0.34 | 700 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.78 | 0.45 | â | 319 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).