Theia 470
0.25
UTI
0.44
CN
0.07
Cdens
0.38
CC3
0.19
Clit
1.0
Cdup
Nm (P>50%)
44
Core radius and density
3.6 [pc], 0.3 [pc-2]
- CN 0.44 Poorly populated
- Cdens 0.07 Very loose
- CC3 0.38 Low quality
- Clit 0.19 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 470 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a close distance, near 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 301.814 | 35.526 | 1.475 | 1.029 | -1.761 | -8.989 |
| Yan et al. | 2026 | 301.879 | 35.458 | 1.467 | 1.051 | -1.783 | â |
| Wei et al. | 2025 | 301.926 | 35.609 | 1.505 | 1.086 | -1.71 | â |
| Zhang et al. | 2024 | 301.879 | 35.458 | â | â | â | â |
| Hunt & Reffert | 2024 | 301.879 | 35.458 | 1.467 | 1.051 | -1.783 | -8.546 |
| Cavallo et al. | 2024 | 301.424 | 35.388 | 1.472 | â | â | â |
| Hunt & Reffert | 2023 | 301.879 | 35.458 | 1.467 | 1.051 | -1.783 | -8.546 |
| He et al. | 2022 | 301.87 | 35.712 | 1.494 | 1.056 | -1.725 | â |
| Kounkel & Covey | 2019 | 301.704 | 35.516 | 1.481 | â | â | 22.251 |
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 | 0.67 | 0.525 | 1.32 | 159 | 0.010 | 206 | 0.32 | â |
| Yan et al. | 2026 | â | â | â | 179 | â | â | â | â |
| Wei et al. | 2025 | 0.75 | 0.62 | â | 68 | 0.000 | 296 | 0.32 | â |
| Zhang et al. | 2024 | â | â | â | â | 0.022(1) | â | â | â |
| Hunt & Reffert | 2024 | 0.65 | 0.31 | 1.32 | 180 | â | 115(1) | â | â |
| Cavallo et al. | 2024 | 0.67 | 0.73 | â | 129 | 0.010 | â | â | â |
| Hunt & Reffert | 2023 | 0.65 | 0.32 | 1.32 | 180 | â | â | â | â |
| He et al. | 2022 | â | 0.75 | â | 63 | â | â | â | â |
| Kounkel & Covey | 2019 | 0.68 | 0.43 | â | 159 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Yan et al. (2026)
Number of WDs: expected from single-star evolution N=5, with probability of formation through binary evolution >=0.5 N=0.
Palma et al. (2025)
Part of multiple system G245, along with Theia_332 and Theia_73.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).