Theia 401
- CN 0.0 Sparse
- Cdens 0.11 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Theia 401 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, below the mid-plane. It is catalogued as a near-solar metallicity cluster (see Parameters). It was recently reported in the literature. 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 | – | 347.858 | 47.656 | 1.469 | -0.874 | -3.466 | -9.281 |
| Zhang et al. | 2024 | 347.809 | 47.781 | – | – | – | – |
| Hunt & Reffert | 2024 | 347.809 | 47.781 | 1.473 | -0.781 | -3.521 | -7.645 |
💡 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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | – | – | – | – | -0.147* | – | – | – |
| Hunt & Reffert | 2024 | – | – | – | – | – | 46* | – | – |
💡 Note: The parameters are sometimes
transformed from their original values to match the format of the
columns shown here, see FAQ.
The columns DAv, Bfr, BSS correspond to differential
extinction, binary fraction, and blue stragglers, respectively.
BSS values can be listed as fractions or integers.
(*): indicates that this parameter is
assigned more than one value in the corresponding reference.
