Theia 900

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.31 0.52 0.62 0.42 1.0
C3
N_50
r_50
AC 31 13.1
Summary

Theia 900 is a poorly populated, moderately dense object of intermediate C3 quality. It is located at a close distance from the Sun, near the mid-plane. It was recently reported in the literature.

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Positions

Reference RA DEC Plx pmRA pmDE Rv
He et al. (2022) 37.237 59.308 1.106 3.539 -2.826 –
Hunt & Reffert (2023) 37.625 59.052 1.109 3.563 -2.874 -10.189
Cavallo et al. (2024) 37.288 59.094 1.118 – – –
Hunt & Reffert (2024) 37.625 59.052 1.109 3.563 -2.874 -10.189
Hu & Soubiran (2025) 37.288 59.094 – – – –
           
UCC 37.306 59.141 1.108 3.578 -2.873 -8.135
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

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Estimated members

Theia 900 UCC
Theia 900 HUNT23

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Fundamental parameters

Reference Values
He et al. (2022) A0=2.1, logAge=8.45
Hunt & Reffert (2023) AV50=1.483, diffAV50=1.548, MOD50=9.647, logAge50=8.522
Cavallo et al. (2024) AV50=1.71, dMod50=9.64, logAge50=8.73, [Fe/H]50=-0.1
Hunt & Reffert (2024) MassJ=92.9923, MassTot=137.132
Hu & Soubiran (2025) MA22=-0.08, MA23f=-0.18, MZ23=0.08, MK24=-0.09, MF24=-0.12

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Cluster region map