Planet HAT-P-57 b

Name HAT-P-57 b
Planet Status Confirmed
Discovered in 2015
Mass 1.85 ( -1.85 +0.0 ) MJ
Mass*sin(i) 1.85 ( -1.85 +0.0 ) MJ
Semi-Major Axis 0.0406 (± 0.0011) AU
Orbital Period 2.465295 (± 3.2e-06) day
Eccentricity 0.0
ω
Tperi
Radius 1.413 ( -0.054 +0.054 ) RJ
Inclination 88.26 (± 0.85) deg
Update 2015-11-04
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2455113.48127 (± 0.00048) JD
Secondary transit
λ
Impact Parameter b 0.031 ( -0.023 +0.04 )
Time Vr=0
Velocity Semiamplitude K 215.2 ( -215.2 +0.0 ) m/s
Calculated temperature 2200.0 K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

HAT-P-57
Name HAT-P-57
Distance 303.0 (± 13.0) pc
Spectral type
Apparent magnitude V 10.47
Mass 1.47 (± 0.12) MSun
Age 1.0 ( -0.51 +0.67 ) Gyr
Effective temperature 7500.0 (± 250.0) K
Radius 1.5 (± 0.05) RSun
Metallicity [Fe/H] -0.25 (± 0.25)
Detected Disc
Magnetic Field
RA2000 18:48:58.0
Dec2000 +10:35:50
Alternate Names 2MASS 18185842+103
Planetary system 1 planet

More data


Related publications

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography
2015 HARTMAN J., BAKOS G., BUCHHAVE L., TORRES G., LATHAM D. et al.
Astron. J., 150, 197
paper  arxiv  ADS