Theia 807
0.26
UTI
0.66
CN
0.08
Cdens
0.5
CC3
0.03
Clit
1.0
Cdup
Nm (P>50%)
81
Core radius and density
2.5 [pc], 0.4 [pc-2]
- CN 0.66 Moderately populated
- Cdens 0.08 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.03 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 807 is a moderately populated, very loose object of intermediate C3 quality. Its parallax locates it at a very close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.
Note: This object shares a moderate 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 | 86.749 | -18.758 | 3.094 | -7.125 | 1.29 | 20.216 |
| Cavallo et al. | 2024 | 88.164 | -19.418 | 3.016 | â | â | â |
| Hunt & Reffert | 2023 | 87.068 | -18.714 | 3.017 | -7.169 | 1.282 | 19.353 |
| Kounkel & Covey | 2019 | 88.326 | -18.146 | 3.303 | â | â | 2.488 |
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 | 0.32 | 0.09 | 0.56 | 111 | -0.200 | â | â | â |
| Cavallo et al. | 2024 | 0.34 | 0.53 | â | 28 | -0.200 | â | â | â |
| Hunt & Reffert | 2023 | 0.32 | 0.09 | 0.56 | 111 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.30 | 0.09 | â | 475 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.69 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.69 (50th percentile).