HSC 2640

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.0 1.0 1.0 0.33 0.32
C3
N_50
r_50
AA 20 1.2
Summary

HSC 2640 is a sparse, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, near the mid-plane. It was recently reported in the literature.

Warning: This is possibly a duplicated object, which shares a significant percentage of members with at least one previously reported entry.

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

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Hunt & Reffert (2023) 212.923 -61.716 0.211 -5.507 -2.107 -68.424
Cavallo et al. (2024) 212.938 -61.708 0.21 – – –
Hunt & Reffert (2024) 212.923 -61.716 0.211 -5.507 -2.107 -68.424
Hu & Soubiran (2025) 212.938 -61.708 – – – –
           
UCC 212.904 -61.707 0.244 -5.508 -2.121 -67.033
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

HSC 2640 UCC
HSC 2640 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=5.177, diffAV50=1.228, MOD50=12.955, logAge50=8.647
Cavallo et al. (2024) AV50=4.47, dMod50=13.42, logAge50=8.9, [Fe/H]50=0.16
Hunt & Reffert (2024) MassJ=858.677, MassTot=858.677
Hu & Soubiran (2025) MA23f=-0.49, MK24=0.06

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 2801 68.0 212.89 -61.71 0.31 -5.53 -2.16 -68.29 0.59