AAVSO: American Association of Variable Star Observers

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Star Exoplanet Observation Date Primary Observer Measurements reference
Details Qatar-4 Qatar-4 b 2020-09-21 SGEO 49 in 1.48 hrs 1930

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

Priors

Period=1.8053646 +/- 6e-07,a/R*=7.11 +/- 0.48,inc=87.5 +/- 1.6,ecc=0.0,u0=2.215 +/- 0.019,u1=-3.885 +/- 0.075,u2=4.122 +/- 0.098,u3=-1.451 +/- 0.041

Results

Tc=2459112.749 +/- 0.005,Rp/R*=0.116 +/- 0.02,a/R*=8.77 +/- 1.12,Am1=0.9748 +/- 0.0056,Am2=0.016 +/- 0.019