AAVSO: American Association of Variable Star Observers

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Star Exoplanet Observation Date Primary Observer Measurements reference
Details HAT-P-20 HAT-P-20 b 2019-04-18 FMAA 77 in 3.88 hrs 280

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

Priors

Period=2.875317 +/- 4e-06,a/R*=11.17,inc=86.8,ecc=0.015,u1=0.7782253,u2=0.019420697

Results

Tc=2458591.70045411 +/- 0.006327,Rp/R*=0.128091 +/- 0.02135,Am1=1.54116 +/- 0.01151,Am2=0.01827 +/- 0.00435
Details HAT-P-20 HAT-P-20 b 2020-02-08 FMAA 78 in 3.97 hrs 257

Detrend Parameters

AIRMASS

Secondary Observers

Priors

Period=2.875317 +/- 4e-06,a/R*=11.17,inc=86.8,ecc=0.015,u1=0.7782253,u2=0.019420697

Results

Tc=2458887.85670297 +/- 0.004146,Rp/R*=0.129349 +/- 0.012627,Am1=1.53013 +/- 0.01025,Am2=0.00787 +/- 0.00487