Theia 984
0.08
UTI
0.68
CN
1.0
Cdens
1.0
CC3
0.0
Clit
0.15
Cdup
Stellar density (N50/rad)
9.3 [N/pc2]
- CN 0.68 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 0.15 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 984 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, intermediate-age 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 | 278.528 | -13.157 | 0.921 | 0.996 | 0.482 | 2.775 |
| Hunt & Reffert | 2024 | 278.533 | -13.147 | 0.922 | 0.967 | 0.459 | 1.203 |
| Cavallo et al. | 2024 | 278.496 | -13.183 | 0.926 | â | â | â |
| Hunt & Reffert | 2023 | 278.533 | -13.147 | 0.922 | 0.967 | 0.459 | 1.203 |
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 | 0.99 | 1.59 | 0.57 | 198 | -0.660 | 334 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 334(1) | â | â |
| Cavallo et al. | 2024 | 0.95 | 1.87 | â | 195 | -0.660 | â | â | â |
| Hunt & Reffert | 2023 | 1.03 | 1.31 | 0.57 | 201 | 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 P169, along with Theia_1829.
Cavallo et al. (2024)
Gold sample.