Theia 7490
0.16
UTI
0.27
CN
0.18
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.9 [N/pc2]
- CN 0.27 Poorly populated
- Cdens 0.18 Very loose
- CC3 0.38 Low quality
- Clit 0.0 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 7490 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 183.503 | -63.784 | 0.513 | -8.036 | -0.513 | -9.731 |
| Hunt & Reffert | 2024 | 183.352 | -63.757 | 0.521 | -8.032 | -0.547 | -9.47 |
| Cavallo et al. | 2024 | 184.121 | -63.852 | 0.524 | â | â | â |
| Hunt & Reffert | 2023 | 183.352 | -63.757 | 0.521 | -8.032 | -0.547 | -9.47 |
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 | 1.615 | 1.065 | 0.58 | 194 | -0.420 | 57 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 57(1) | â | â |
| Cavallo et al. | 2024 | 1.41 | 1.22 | â | 186 | -0.420 | â | â | â |
| Hunt & Reffert | 2023 | 1.82 | 0.91 | 0.58 | 202 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G249, along with NGC_4349 and UBC_284.
Cavallo et al. (2024)
Gold sample.