COIN-Gaia 40

(COIN 40)

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.58 1.0 0.75 0.56 1.0
C3
N_50
r_50
AB 66 4.7
Summary

COIN-Gaia 40 is a moderately populated, very dense object of high C3 quality. It is located at a moderate distance from the Sun, near the mid-plane. It is moderately studied 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
Cantat-Gaudin et al. (2019) 81.874 33.526 0.47 0.39 -2.73 –
Monteiro & Dias (2019) 81.874 33.526 – – – 2.271
Cantat-Gaudin et al. (2020) 81.874 33.526 0.47 0.393 -2.762 –
Dias et al. (2021) 81.868 33.498 0.47 0.391 -2.729 –
Hunt & Reffert (2023) 81.892 33.515 0.455 0.34 -2.779 54.256
Cavallo et al. (2024) 81.91 33.536 0.455 – – –
Hunt & Reffert (2024) 81.892 33.515 0.455 0.34 -2.779 54.256
Zhang et al. (2024) 81.892 33.515 – – – –
Almeida et al. (2025) 81.868 33.498 – – – –
           
UCC 81.897 33.522 0.471 0.338 -2.79 54.239
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

COIN-Gaia 40 UCC
COIN-Gaia 40 HUNT23
COIN-Gaia 40 CANTAT20

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Fundamental parameters

Reference Values
Cantat-Gaudin et al. (2019) d=2003
Monteiro & Dias (2019) E(B-V)=0.398, Dist=2.175, logAge=7.823, Z=0.014
Dias et al. (2021) Av=1.17, Dist=1917, logage=8.157, [Fe/H]=-0.133
Hunt & Reffert (2023) AV50=0.813, diffAV50=1.004, MOD50=11.516, logAge50=8.331
Cavallo et al. (2024) AV50=0.89, dMod50=11.49, logAge50=8.68, [Fe/H]50=0.05
Hunt & Reffert (2024) MassJ=268.006, MassTot=271.608
Zhang et al. (2024) [Fe/H]ANN=-0.0954, [Fe/H]MCMC=0.08170
Almeida et al. (2025) AV=1.17, Dist=1917, logAge=8.157, MassRk=189.3

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 67 100.0 81.9 33.53 0.47 0.34 -2.78 54.24 0.13