NGC 6531

(M 21; Melotte 188; Collinder 363; OCL 26; ESO 521 19; MWSC 2796)

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UCC G007.6-00.3

C3
N_50
r_50
AA 205 4.7

Search object in NASA/SAO ADS | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Dambis (1999) 271.054 -22.49
Dias et al. (2002) 271.054 -22.49 2.28 -3.05 -13.49
Chen et al. (2003) 271.109 -22.492 2.28 -3.05 -16.0
Kharchenko et al. (2012) 271.05 -22.49 2.43 -1.44
Loktin & Popova (2017) 271.05 -22.491 2.794 -2.952 -14.7
Bica et al. (2019) 271.046 -22.494
Bossini et al. (2019) 271.036 -22.505
Cantat-Gaudin et al. (2020) 271.036 -22.505 0.798 0.525 -1.521
Dias et al. (2021) 271.031 -22.515 0.797 0.537 -1.536
Jaehnig et al. (2021) 271.05 -22.495 0.841 0.472 -1.397
He et al. (2022) 271.036 -22.511 0.807 0.535 -1.476
Hunt & Reffert (2023) 271.042 -22.5 0.801 0.538 -1.464 -5.191
Cavallo et al. (2024) 271.041 -22.523 0.798
Hunt & Reffert (2024) 271.042 -22.5 0.801 0.538 -1.464 -5.191
UCC 271.046 -22.503 0.799 0.542 -1.45 -4.885

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Estimated members

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Fundamental parameters

Reference Values
Dambis (1999) E_B-V_=0.279, DM0=10.07, log_age_=6.55
Dias et al. (2002) E(B-V)=0.281, Dist=1205.0, Age=7.07
Chen et al. (2003) HDis=1205, Age=0.01
Kharchenko et al. (2012) e_bv=0.344, distance=1194, log_age=6.82
Loktin & Popova (2017) E(B-V)=0.281, Dmod=10.404, logt=7.067
Bossini et al. (2019) AV=0.757, Dist=10.19, logA=7.046, Fe/H=0.0
Cantat-Gaudin et al. (2020) AVNN=0.67, DMNN=10.33, AgeNN=7.11
Dias et al. (2021) Av=0.992, Dist=1161, logage=7.106, [Fe/H]=0.09
He et al. (2022) A0=1.1, logAge=6.75
Hunt & Reffert (2023) AV50=0.8, diffAV50=1.304, MOD50=10.379, logAge50=6.735
Cavallo et al. (2024) AV50=0.98, dMod50=10.16, logAge50=6.96, [Fe/H]50=-0.13
Hunt & Reffert (2024) MassJ=912.578

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Cluster region