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 2018-02-23 RKEB 64 in 3.26 hrs 2848

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=1.3555 +/- 0.0091,u1=-2.084 +/- 0.037,u2=2.606 +/- 0.049,u3=-0.877 +/- 0.021

Results

Tc=2458172.6353 +/- 0.002,Rp/R*=0.174 +/- 0.026,a/R*=22.64 +/- 4.43,Am1=1.029 +/- 0.019,Am2=-0.024 +/- 0.09
Details HAT-P-54 HAT-P-54 b 2019-01-27 RKEB 77 in 3.86 hrs 2847

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=1.3558 +/- 0.0091,u1=-2.085 +/- 0.037,u2=2.607 +/- 0.049,u3=-0.878 +/- 0.021

Results

Tc=2458510.8275 +/- 0.0025,Rp/R*=0.148 +/- 0.016,a/R*=12.15 +/- 2.52,Am1=0.957 +/- 0.022,Am2=0.039 +/- 0.014
Details HAT-P-54 HAT-P-54 b 2021-12-03 RKEB 52 in 3.36 hrs 2849

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=1.3566 +/- 0.0091,u1=-2.087 +/- 0.037,u2=2.609 +/- 0.049,u3=-0.878 +/- 0.021

Results

Tc=2459551.9893 +/- 0.0051,Rp/R*=0.1999 +/- 0.0095,a/R*=13.36 +/- 1.58,Am1=0.971 +/- 0.035,Am2=0.027 +/- 0.047
Details HAT-P-54 HAT-P-54 b 2021-12-22 RKEB 39 in 2.33 hrs 2850

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=1.3565 +/- 0.0091,u1=-2.086 +/- 0.037,u2=2.607 +/- 0.049,u3=-0.878 +/- 0.021

Results

Tc=2459570.953 +/- 0.015,Rp/R*=0.184 +/- 0.058,a/R*=25.67 +/- 13.47,Am1=3.12 +/- 0.67,Am2=-0.91 +/- 0.33