Berkeley 31

(Biurakan 7; OCL 513; FSR 1012; MWSC 1032)

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UCC G206.2+05.1

C3
N_50
r_50
AB 375 1.7

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Positions

Reference RA DEC Plx pmRA pmDE Rv
Dias et al. (2002) 104.4 8.267 -2.43 -2.33 55.7
Chen et al. (2003) 104.378 8.288 -4.3 -3.97 61.0
Kharchenko et al. (2012) 104.395 8.298 -1.06 -5.13
Loktin & Popova (2017) 104.4 8.268 -2.43 -2.33 61.0
Bica et al. (2019) 104.399 8.292
Cantat-Gaudin et al. (2020) 104.406 8.285 0.141 0.169 -0.926
Donor et al. (2020) 104.395 8.298 0.24 -1.08 59.6
Dias et al. (2021) 104.396 8.281 0.128 0.178 -0.905
Jaehnig et al. (2021) 104.406 8.279 0.172 0.055 -0.884
Hunt & Reffert (2023) 104.407 8.288 0.123 0.114 -0.922 65.271
Cavallo et al. (2024) 104.407 8.288 0.127
Hunt & Reffert (2024) 104.407 8.288 0.123 0.114 -0.922 65.271
Hu & Soubiran (2025) 104.407 8.288
UCC 104.407 8.285 0.14 0.147 -0.932 61.314

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Estimated members

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Fundamental parameters

Reference Values
Dias et al. (2002) E(B-V)=0.08, Dist=8272.0, Age=9.313, [Fe/H]=-0.4
Chen et al. (2003) E(B-V)=0.08, HDis=8272, Age=2.05, [Fe/H]_1=-0.5, [Fe/H]_2=-0.5
Kharchenko et al. (2012) e_bv=0.073, distance=6242, log_age=9.3, metallicity=-0.4
Loktin & Popova (2017) E(B-V)=0.08, Dmod=14.588, logt=9.313
Cantat-Gaudin et al. (2020) AVNN=0.35, DMNN=14.28, AgeNN=9.45
Donor et al. (2020) Fe/H=-0.45
Dias et al. (2021) Av=0.358, Dist=6180, logage=9.567, [Fe/H]=-0.129
Hunt & Reffert (2023) AV50=0.426, diffAV50=2.122, MOD50=13.903, logAge50=9.076
Cavallo et al. (2024) AV50=0.52, dMod50=13.24, logAge50=9.59, [Fe/H]50=-0.41
Hunt & Reffert (2024) MassJ=1130.51
Hu & Soubiran (2025) MA22=-0.29, MA23f=-0.6, MA23g=-0.4, MZ23=-0.48, MK24=-0.39, MF24=-0.44

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Cluster region