Theia 874
0.28
UTI
0.32
CN
0.22
Cdens
0.38
CC3
0.25
Clit
1.0
Cdup
Stellar density (N50/rad)
1.1 [N/pc2]
- CN 0.32 Poorly populated
- Cdens 0.22 Very loose
- CC3 0.38 Low quality
- Clit 0.25 Poorly 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 874 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a low-mass, near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 87.583 | 34.162 | 1.361 | 2.037 | -6.447 | -10.573 |
| Zhang et al. | 2024 | 87.572 | 34.228 | â | â | â | â |
| Hunt & Reffert | 2024 | 87.572 | 34.228 | 1.358 | 2.051 | -6.419 | -8.716 |
| Cavallo et al. | 2024 | 87.225 | 34.646 | 1.359 | â | â | â |
| Hunt & Reffert | 2023 | 87.572 | 34.228 | 1.358 | 2.051 | -6.419 | -8.716 |
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 | 0.7 | 0.585 | 0.67 | 277 | -0.007 | 42 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.095(1) | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 42(1) | â | â |
| Cavallo et al. | 2024 | 0.71 | 0.69 | â | 234 | 0.080 | â | â | â |
| Hunt & Reffert | 2023 | 0.69 | 0.48 | 0.67 | 320 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P428, along with HSC_1399.
Cavallo et al. (2024)
Gold sample.