AAVSO: American Association of Variable Star Observers

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Star Exoplanet Observation Date Primary Observer Measurements reference
Details HAT-P-54 HAT-P-54 b 2018-12-01 KRYB 43 in 2.47 hrs 2869

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=3.7998529 +/- 1.7e-06,Rp/R*=0.16 +/- 0.0011,a/R*=15.5 +/- 2.16,inc=87.04 +/- 0.084,ecc=0.66,u0=1.3554 +/- 0.0091,u1=-2.084 +/- 0.037,u2=2.607 +/- 0.049,u3=-0.878 +/- 0.021

Results

Tc=2458453.8288 +/- 0.0049,Rp/R*=0.175 +/- 0.053,a/R*=10.34 +/- 14.5,Am1=1.127 +/- 0.023,Am2=-0.096 +/- 0.039
Details HAT-P-54 HAT-P-54 b 2018-12-20 KRYB 39 in 2.03 hrs 2868

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=3.7998529 +/- 1.7e-06,Rp/R*=0.16 +/- 0.0011,a/R*=15.5 +/- 2.16,inc=87.04 +/- 0.084,ecc=0.66,u0=1.3567 +/- 0.0091,u1=-2.087 +/- 0.037,u2=2.608 +/- 0.049,u3=-0.878 +/- 0.021

Results

Tc=2458472.8232 +/- 0.0048,Rp/R*=0.2 +/- 0.043,a/R*=21.46 +/- 7.04,Am1=0.389 +/- 0.016,Am2=0.93 +/- 0.44
Details HAT-P-54 HAT-P-54 b 2019-01-08 KRYB 69 in 3.88 hrs 2867

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=3.7998529 +/- 1.7e-06,Rp/R*=0.16 +/- 0.0011,a/R*=15.5 +/- 2.16,inc=87.04 +/- 0.084,ecc=0.66,u0=1.3557 +/- 0.0091,u1=-2.084 +/- 0.037,u2=2.606 +/- 0.049,u3=-0.877 +/- 0.021

Results

Tc=2458491.8207 +/- 0.004,Rp/R*=0.199 +/- 0.021,a/R*=19.26 +/- 3.64,Am1=1.522 +/- 0.045,Am2=-0.4 +/- 0.079
Details HAT-P-54 HAT-P-54 b 2020-01-27 KRYB 42 in 2.00 hrs 3963

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=3.7998529 +/- 1.7e-06,Rp/R*=0.16 +/- 0.0011,a/R*=15.5 +/- 2.16,inc=87.04 +/- 0.084,ecc=0.66,u0=1.357 +/- 0.0091,u1=-2.087 +/- 0.037,u2=2.609 +/- 0.049,u3=-0.878 +/- 0.021

Results

Tc=2458875.6101 +/- 0.0036,Rp/R*=0.191 +/- 0.014,a/R*=16.53 +/- 1.81,Am1=0.91 +/- 0.018,Am2=0.076 +/- 0.035