AAVSO: American Association of Variable Star Observers

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Search results showing 6 observations

Star Exoplanet Observation Date Primary Observer Measurements reference
Details HAT-P-54 HAT-P-54 b 2017-02-23 KCHF 74 in 4.32 hrs 2876

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=1.3559 +/- 0.0091,u1=-2.085 +/- 0.037,u2=2.607 +/- 0.049,u3=-0.878 +/- 0.021

Results

Tc=2457807.8448 +/- 0.0011,Rp/R*=0.162 +/- 0.051,a/R*=18.37 +/- 10.2,Am1=0.886 +/- 0.034,Am2=0.0546 +/- 0.0048
Details HAT-P-54 HAT-P-54 b 2018-12-01 KCHF 38 in 2.47 hrs 2877

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=1.3556 +/- 0.0091,u1=-2.084 +/- 0.037,u2=2.605 +/- 0.049,u3=-0.877 +/- 0.021

Results

Tc=2458453.8289 +/- 0.0044,Rp/R*=0.146 +/- 0.049,a/R*=16.12 +/- 10.96,Am1=1.02 +/- 0.016,Am2=-0.02 +/- 0.045
Details HAT-P-54 HAT-P-54 b 2018-12-20 KCHF 36 in 2.03 hrs 2878

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=1.355 +/- 0.0091,u1=-2.082 +/- 0.037,u2=2.604 +/- 0.049,u3=-0.877 +/- 0.021

Results

Tc=2458472.8272 +/- 0.0047,Rp/R*=0.199 +/- 0.037,a/R*=25.09 +/- 6.58,Am1=0.822 +/- 0.028,Am2=0.2 +/- 0.44
Details HAT-P-54 HAT-P-54 b 2019-11-27 KCHF 75 in 4.03 hrs 3964

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=-2.085 +/- 0.037,u2=2.607 +/- 0.049,u3=-0.878 +/- 0.021

Results

Tc=2458814.8065 +/- 0.0034,Rp/R*=0.167 +/- 0.015,a/R*=13.04 +/- 1.59,Am1=0.943 +/- 0.017,Am2=0.045 +/- 0.012
Details HAT-P-54 HAT-P-54 b 2020-02-11 KCHF 51 in 3.46 hrs 2879

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=1.3553 +/- 0.0091,u1=-2.083 +/- 0.037,u2=2.605 +/- 0.049,u3=-0.877 +/- 0.021

Results

Tc=2458890.8183 +/- 0.0088,Rp/R*=0.182 +/- 0.057,a/R*=34.05 +/- 15.29,Am1=1.042 +/- 0.042,Am2=-0.023 +/- 0.026
Details HAT-P-54 HAT-P-54 b 2020-12-11 KCHF 51 in 3.50 hrs 2880

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=1.3553 +/- 0.0091,u1=-2.083 +/- 0.037,u2=2.605 +/- 0.049,u3=-0.877 +/- 0.021

Results

Tc=2459194.78 +/- 0.011,Rp/R*=0.197 +/- 0.057,a/R*=23.76 +/- 12.85,Am1=1.054 +/- 0.038,Am2=-0.046 +/- 0.045