UPK 639

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.0 0.3 0.62 0.25 1.0
C3
N_50
r_50
AC 20 17.7
Summary

UPK 639 is a sparse, loose object of intermediate C3 quality. It is located at a close distance from the Sun, below the mid-plane. It is poorly studied in the literature.

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

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Sim et al. (2019) 261.893 -46.291 – 1.15 -9.3 –
Hunt & Reffert (2023) 261.039 -46.632 1.402 0.956 -9.241 -22.77
Cavallo et al. (2024) 261.142 -46.594 1.401 – – –
           
UCC 261.234 -46.56 1.408 1.056 -9.313 -19.501
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

UPK 639 UCC
UPK 639 HUNT23

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Fundamental parameters

Reference Values
Sim et al. (2019) d_pc=707, log(age)=8.9
Hunt & Reffert (2023) AV50=0.392, diffAV50=0.694, MOD50=9.121, logAge50=8.678
Cavallo et al. (2024) AV50=0.49, dMod50=9.08, logAge50=8.69, [Fe/H]50=-0.08

Search coordinates in Bayestar19

Cluster region map