Theia 1920

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.0 0.17 0.38 0.0 0.96
C3
N_50
r_50
BC 21 14.8
Summary

Theia 1920 is a sparse, very loose object of low C3 quality. It is located at a relatively close distance from the Sun, above the mid-plane. It was recently reported in the literature.This is a unique object, which shares a very small percentage of members with at least one previously reported entry.

Warning: contains less than 25 stars with P>0.5 estimated.

Warning: the low UTI value and no obvious signs of duplication (C_dup=0.96) 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) 304.467 38.725 0.876 -3.034 -6.98 -6.625
Cavallo et al. (2024) 304.441 38.981 0.874 – – –
           
UCC 304.425 38.853 0.873 -3.08 -7.005 -4.557
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

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Estimated members

Theia 1920 UCC
Theia 1920 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=1.059, diffAV50=1.569, MOD50=10.233, logAge50=6.959
Cavallo et al. (2024) AV50=1.0, dMod50=10.24, logAge50=7.2, [Fe/H]50=0.21

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Dolidze 42 4.0 304.98 38.1 0.87 -2.97 -7.32 10.15 0.31