Alessi 22

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.26 0.13 0.75 0.33 1.0
C3
N_50
r_50
AB 26 61.1
Summary

Alessi 22 is a poorly populated, very loose object of high C3 quality. It is located at a very close distance from the Sun, below the mid-plane. It is poorly studied in the literature.

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

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Positions

Reference RA DEC Plx pmRA pmDE Rv
Dias et al. (2002) 357.029 36.205 – -3.6 -10.5 7.2
Hunt & Reffert (2023) 357.172 36.229 2.804 -4.364 -12.792 -5.507
Cavallo et al. (2024) 357.648 36.101 2.802 – – –
Hu & Soubiran (2025) 357.648 36.101 – – – –
           
UCC 357.196 36.24 2.808 -4.409 -13.067 -7.161
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

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Estimated members

Alessi 22 UCC
Alessi 22 HUNT23

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Fundamental parameters

Reference Values
Hunt & Reffert (2023) AV50=0.302, diffAV50=0.655, MOD50=7.678, logAge50=8.827
Cavallo et al. (2024) AV50=0.65, dMod50=7.69, logAge50=8.74, [Fe/H]50=-0.02
Hu & Soubiran (2025) MA22=-0.16, MA23f=-0.08, MZ23=0.07, MK24=-0.02, MF24=-0.06

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 1254 92.3 357.2 36.23 2.82 -4.42 -13.07 -7.11 0.01