Theia 1822
0.10
UTI
0.64
CN
1.0
Cdens
0.75
CC3
0.0
Clit
0.22
Cdup
Stellar density (N50/rad)
6.1 [N/pc2]
- CN 0.64 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 0.22 Likely 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 1822 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
â ī¸ Warning: This is likely a duplicate object, which shares a large 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 | 252.881 | -44.493 | 0.414 | -0.597 | -2.528 | -80.971 |
| Hunt & Reffert | 2024 | 252.894 | -44.496 | 0.419 | -0.605 | -2.523 | -48.574 |
| Cavallo et al. | 2024 | 252.891 | -44.496 | 0.419 | â | â | â |
| Hunt & Reffert | 2023 | 252.894 | -44.496 | 0.419 | -0.605 | -2.523 | -48.574 |
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 | 2.075 | 2.09 | 2.64 | 92 | 0.410 | 719 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 719(1) | â | â |
| Cavallo et al. | 2024 | 2.01 | 2.04 | â | 98 | 0.410 | â | â | â |
| Hunt & Reffert | 2023 | 2.14 | 2.14 | 2.64 | 85 | 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 (not dynamically associated) P83, along with BH_200.
Cavallo et al. (2024)
Gold sample.