Theia 1813

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.68 1.0 1.0 0.33 0.13
C3
N_50
r_50
AA 86 2.3
Summary

Theia 1813 is a moderately populated, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, below the mid-plane. It was recently reported in the literature.

Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry.

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Positions

Reference RA DEC Plx pmRA pmDE Rv
Hunt & Reffert (2023) 264.338 -33.838 0.255 -0.883 -2.075 -5.053
Cavallo et al. (2024) 264.324 -33.839 0.254 – – –
Hunt & Reffert (2024) 264.338 -33.838 0.255 -0.883 -2.075 -5.053
Hu & Soubiran (2025) 264.324 -33.839 – – – –
           
UCC 264.34 -33.842 0.244 -0.889 -2.067 -4.184
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

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Estimated members

Theia 1813 UCC
Theia 1813 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=4.705, diffAV50=2.313, MOD50=12.662, logAge50=8.518
Cavallo et al. (2024) AV50=4.44, dMod50=13.94, logAge50=8.8, [Fe/H]50=-1.22
Hunt & Reffert (2024) MassJ=3928.21, MassTot=3928.21
Hu & Soubiran (2025) MA22=-0.41, MA23f=-0.03, MZ23=0.34, MK24=0.04, MF24=0.08

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
FoF 1200 87.2 264.34 -33.84 0.24 -0.85 -2.06 -3.9 0.64