Theia 189

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.25 0.21 0.38 0.0 1.0
C3
N_50
r_50
BC 25 18.1
Summary

Theia 189 is a poorly populated, very loose object of low C3 quality. It is located at a close distance from the Sun, near the mid-plane. It was recently reported in the literature.

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) 97.787 5.431 1.079 -1.586 -3.408 20.861
Cavallo et al. (2024) 97.817 6.07 1.08 – – –
           
UCC 97.828 5.423 1.087 -1.673 -3.376 22.844
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

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Estimated members

Theia 189 UCC
Theia 189 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=0.211, diffAV50=0.578, MOD50=9.71, logAge50=8.402
Cavallo et al. (2024) AV50=0.64, dMod50=9.61, logAge50=8.34, [Fe/H]50=-0.32

Search coordinates in Bayestar19

Cluster region map