Theia 5426
0.05
UTI
0.0
CN
0.02
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
6.2 [arcmin]
- CN 0.0 Sparse
- Cdens 0.02 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 5426 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a very massive, near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~7.14 kpc) differs significantly from the median photometric distance (~5.48 kpc).
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.
Very distant
Moderate extinction
Very massive
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 145.891 | -53.943 | 0.14 | -4.134 | 3.188 | 51.066 |
| Hunt & Reffert | 2024 | 145.893 | -53.974 | 0.146 | -4.172 | 3.152 | 33.913 |
| Cavallo et al. | 2024 | 145.911 | -53.976 | 0.147 | â | â | â |
| Hunt & Reffert | 2023 | 145.893 | -53.974 | 0.146 | -4.172 | 3.152 | 33.913 |
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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 5638* | â | â |
| Cavallo et al. | 2024 | 5.37 | 2.71 | â | 257 | 0.430 | â | â | â |
| Hunt & Reffert | 2023 | 5.59 | 3.17 | 2.79 | 77 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.