Theia 4

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.75 1.0 0.75 0.25 0.94
C3
N_50
r_50
AB 107 12.2
Summary

Theia 4 is a rich, very dense object of high C3 quality. It is located at a close distance from the Sun, above the mid-plane. It was recently reported in the literature.

This is very likely a unique object, which shares a very small 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) 344.129 62.977 1.156 -2.397 -2.547 -17.247
Cavallo et al. (2024) 344.419 63.037 1.154 – – –
Hunt & Reffert (2024) 344.129 62.977 1.156 -2.397 -2.547 -17.247
           
UCC 344.354 62.994 1.163 -2.404 -2.559 -13.562
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

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Estimated members

Theia 4 UCC
Theia 4 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=2.032, diffAV50=1.472, MOD50=9.596, logAge50=6.685
Cavallo et al. (2024) AV50=2.09, dMod50=9.69, logAge50=6.68, [Fe/H]50=-0.14
Hunt & Reffert (2024) MassJ=175.293, MassTot=174.099

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Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
FSR 0413 5.6 345.14 62.89 1.05 -2.24 -2.56 2.42 0.32