UBC 557

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.68 1.0 0.75 0.58 1.0
C3
N_50
r_50
AB 85 8.7
Summary

UBC 557 is a moderately populated, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, above the mid-plane. It is moderately studied in the literature.

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

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Castro-Ginard et al. (2020) 256.163 -38.983 0.634 1.454 -0.406 –
Cantat-Gaudin et al. (2020) 256.181 -38.983 0.63 1.456 -0.4 –
Dias et al. (2021) 256.172 -38.973 0.647 1.458 -0.39 –
Hunt & Reffert (2023) 256.199 -38.922 0.658 1.477 -0.416 -14.911
Cavallo et al. (2024) 256.198 -38.957 0.658 – – –
Hunt & Reffert (2024) 256.199 -38.922 0.658 1.477 -0.416 -14.911
Almeida et al. (2025) 256.172 -38.973 – – – –
           
UCC 256.199 -38.955 0.655 1.469 -0.42 -14.918
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

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Estimated members

UBC 557 UCC
UBC 557 HUNT23
UBC 557 CANTAT20

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Fundamental parameters

Reference Values
Cantat-Gaudin et al. (2020) AVNN=1.36, DistPc=1617.0, AgeNN=8.16
Dias et al. (2021) Av=1.694, Dist=1489, logage=7.866, [Fe/H]=0.203
Hunt & Reffert (2023) AV50=1.493, diffAV50=1.05, MOD50=10.79, logAge50=7.986
Cavallo et al. (2024) AV50=1.89, dMod50=10.55, logAge50=8.19, [Fe/H]50=-0.45
Hunt & Reffert (2024) MassJ=395.742, MassTot=413.303
Almeida et al. (2025) AV=1.694, Dist=1489, logAge=7.866, MassRk=261.2

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 14195 51.8 256.18 -38.96 0.66 1.46 -0.44 -14.92 0.0