Theia 253
0.14
UTI
0.64
CN
0.89
Cdens
0.75
CC3
0.0
Clit
0.31
Cdup
Stellar density (N50/rad)
4.4 [N/pc2]
- CN 0.64 Moderately populated
- Cdens 0.89 Dense
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 0.31 Possibly duplicate
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 253 is a moderately populated, dense object of high C3 quality. Its parallax locates it at a very 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.
â ī¸ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously 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 | 293.629 | 32.11 | 2.348 | 2.443 | -1.329 | -19.421 |
| Hunt & Reffert | 2024 | 293.685 | 32.122 | 2.363 | 2.35 | -1.32 | -19.223 |
| Cavallo et al. | 2024 | 293.546 | 32.186 | 2.367 | â | â | â |
| Hunt & Reffert | 2023 | 293.685 | 32.122 | 2.363 | 2.35 | -1.32 | -19.223 |
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 | 0.415 | 0.335 | 0.45 | 102 | 0.120 | 43 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 43(1) | â | â |
| Cavallo et al. | 2024 | 0.43 | 0.51 | â | 66 | 0.120 | â | â | â |
| Hunt & Reffert | 2023 | 0.40 | 0.16 | 0.45 | 137 | 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 P608, along with ASCC_101.
Cavallo et al. (2024)
Gold sample.