HSC 552

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.0 0.09 0.25 0.25 1.0
C3
N_50
r_50
CC 22 44.6
Summary

HSC 552 is a sparse, very loose object of low C3 quality. It is located at a close distance from the Sun, above the mid-plane. It was recently reported in the literature.

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

Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicates that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Hunt & Reffert (2023) 280.499 40.464 1.855 5.202 -14.964 2.821
Cavallo et al. (2024) 279.251 40.233 1.853 – – –
Hu & Soubiran (2025) 279.251 40.233 – – – –
           
UCC 280.247 40.331 1.837 5.252 -14.877 14.286
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

HSC 552 UCC
HSC 552 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=0.191, diffAV50=0.603, MOD50=8.572, logAge50=9.805
Cavallo et al. (2024) AV50=0.37, dMod50=8.81, logAge50=9.31, [Fe/H]50=0.1
Hu & Soubiran (2025) MA22=0.0, MA23f=-0.04, MZ23=-0.01, MK24=-0.02, MF24=-0.07

Search coordinates in Bayestar19

Cluster region map