Theia 669

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C3
N_50
r_50
CC 19 16.9
Summary

Theia 669 is a sparse, very loose object of low C3 quality. It is located at a close distance from the Sun, above the mid-plane. It was recently reported in the literature.

Warning: contains less than 25 stars with P>0.5 estimated.

Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicates that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Hunt & Reffert (2023) 91.613 38.92 1.137 1.674 -3.099 -12.294
Cavallo et al. (2024) 91.624 38.843 1.148
Hu & Soubiran (2025) 91.624 38.843
           
UCC 91.61 38.897 1.138 1.663 -3.149 -18.393
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=0.565, diffAV50=0.447, MOD50=9.587, logAge50=8.156
Cavallo et al. (2024) AV50=0.0, dMod50=9.86, logAge50=8.88, [Fe/H]50=0.89
Hu & Soubiran (2025) MA22=-0.03, MA23f=-0.22, MZ23=0.01, MK24=-0.05, MF24=-0.03

Search coordinates in Bayestar19

Cluster region map