AAVSO: American Association of Variable Star Observers

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Star Exoplanet Observation Date Primary Observer Measurements reference
Details HAT-P-21 HAT-P-21 b 2022-05-15 MBEB 130 in 4.74 hrs 1473

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

Priors

Period=4.1244799 +/- 6.3e-06,a/R*=8.94 +/- 0.6,inc=87.2 +/- 0.7,ecc=0.22,u0=2.372 +/- 0.021,u1=-4.239 +/- 0.083,u2=4.44 +/- 0.11,u3=-1.573 +/- 0.045

Results

Tc=2459714.816 +/- 0.022,Rp/R*=0.074 +/- 0.013,a/R*=13.51 +/- 2.31,Am1=0.9978 +/- 0.0062,Am2=0.0019 +/- 0.0055