Theia 2018

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.39 0.1 0.5 0.25 1.0
C3
N_50
r_50
BB 39 9.3
Summary

Theia 2018 is a poorly populated, very loose object of intermediate C3 quality. It is located at a moderate distance from the Sun, below the mid-plane. It was recently reported in the literature.

This object shares a significant percentage of members with a later reported entry.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Hunt & Reffert (2023) 116.087 -26.871 0.319 -1.839 2.476 –
Cavallo et al. (2024) 116.074 -26.898 0.319 – – –
Hunt & Reffert (2024) 116.087 -26.871 0.319 -1.839 2.476 –
           
UCC 116.087 -26.914 0.311 -1.855 2.485 –
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

Theia 2018 UCC
Theia 2018 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=1.119, diffAV50=1.0, MOD50=12.232, logAge50=7.833
Cavallo et al. (2024) AV50=1.06, dMod50=12.78, logAge50=8.0, [Fe/H]50=0.64
Hunt & Reffert (2024) MassJ=273.416, MassTot=193.088

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 4354 61.5 116.1 -26.87 0.32 -1.85 2.49 – 0.0