Hogg 21

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.76 1.0 1.0 0.82 1.0
C3
N_50
r_50
AA 133 5.0
Summary

Hogg 21 is a rich, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, near the mid-plane. It is well-studied in the literature.

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

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Dias et al. (2002) 251.404 -47.733 – -0.35 -3.07 –
Kharchenko et al. (2012) 251.4 -47.747 – -3.25 -3.02 –
Cantat-Gaudin et al. (2018) 251.414 -47.747 0.366 -0.937 -2.206 –
Soubiran et al. (2018) 251.414 -47.747 – – – -2.75
Dias et al. (2019) 251.404 -47.733 0.347 -0.96 -2.174 -41.031
Cantat-Gaudin et al. (2020) 251.414 -47.747 0.366 -0.937 -2.206 –
Dias et al. (2021) 251.405 -47.747 0.377 -0.96 -2.207 -2.217
Hunt & Reffert (2023) 251.414 -47.744 0.375 -1.009 -2.147 -46.992
Cavallo et al. (2024) 251.413 -47.749 0.374 – – –
Hunt & Reffert (2024) 251.414 -47.744 0.375 -1.009 -2.147 -46.992
Almeida et al. (2025) 251.405 -47.747 – – – –
           
UCC 251.407 -47.742 0.37 -0.969 -2.173 -43.908
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

Hogg 21 UCC
Hogg 21 HUNT23
Hogg 21 CANTAT20

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Fundamental parameters

Reference Values
Dias et al. (2002) E(B-V)=0.729, Dist=1750.0, Age=7.45
Kharchenko et al. (2012) e_bv=0.729, distance=1750, log_age=7.45
Cantat-Gaudin et al. (2018) dmode=2531.6
Soubiran et al. (2018) dmode=2531.6
Dias et al. (2019) E(B-V)=0.5, Dist=2637, logAge=7.621, Z=0.023
Cantat-Gaudin et al. (2020) AVNN=1.54, DistPc=2703.0, AgeNN=7.95
Dias et al. (2021) Av=1.936, Dist=2311, logage=7.767, [Fe/H]=0.169
Hunt & Reffert (2023) AV50=1.818, diffAV50=1.04, MOD50=12.049, logAge50=7.971
Cavallo et al. (2024) AV50=2.0, dMod50=11.74, logAge50=8.15, [Fe/H]50=0.04
Hunt & Reffert (2024) MassJ=772.332, MassTot=771.004
Almeida et al. (2025) AV=1.936, Dist=2311, logAge=7.767, MassRk=335.1

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 318 7.5 251.12 -47.58 0.34 -0.94 -2.23 -43.36 0.14