HSC 1678

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.26 0.26 0.5 0.33 1.0
C3
N_50
r_50
BB 26 2.5
Summary

HSC 1678 is a poorly populated, loose object of intermediate C3 quality. It is located at a large distance from the Sun, below the mid-plane. It was recently reported in the literature.

This object shares a large percentage of members with a later reported entry.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Hunt & Reffert (2023) 100.348 -1.253 0.172 -0.642 0.994 26.024
Cavallo et al. (2024) 100.356 -1.248 0.166 – – –
Hunt & Reffert (2024) 100.348 -1.253 0.172 -0.642 0.994 26.024
Hu & Soubiran (2025) 100.356 -1.248 – – – –
           
UCC 100.368 -1.25 0.162 -0.656 0.996 26.032
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

HSC 1678 UCC
HSC 1678 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=1.789, diffAV50=0.825, MOD50=13.737, logAge50=8.503
Cavallo et al. (2024) AV50=1.49, dMod50=13.27, logAge50=8.76, [Fe/H]50=0.14
Hunt & Reffert (2024) MassJ=416.178, MassTot=445.933
Hu & Soubiran (2025) MA22=-0.25, MA23f=-0.56, MF24=-0.75

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 3481 100.0 100.36 -1.25 0.17 -0.65 1.01 26.03 0.06