Kepler-76b

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Kepler-76b
Extrasolar planet List of extrasolar planets
Parent star
Star Kepler-76
Constellation Cygnus
Right ascension (α) 19h 36m 46.11s
Declination (δ) +39° 37′ 8″
Apparent magnitude (mV) 13.3
Mass (m) 1.2 M
Radius (r) 1.32 R
Temperature (T) 6409 K
Metallicity [Fe/H] −0.1
Physical characteristics
Mass (m) ~2 MJ
Radius (r) 1.25 RJ
Geometric Albedo (Ag) 0.23 (visible light)
Density (ρ) 1.4 g cm-3
Temperature (T) 2250 K
Orbital elements
Semimajor axis (a) 0.028 AU[1] AU
Eccentricity (e) ~0
Orbital period (P) 1.54492875 d
Inclination (i) 78°
Discovery information
Discovery date May, 2013
Discoverer(s)
Discovery method Stellar flux variations due to relativistic beaming,
Transit (Kepler Mission)
Other detection methods Radial velocity,
Orbital light variations,
Ellipsoidal light variations
Discovery status Confirmed

Kepler-76b is a gas giant with the mass about two times of Jupiter.[2]

It is a Hot Jupiter that orbits its star every 1.5 days. Confirmed with Trans-Atlantic Exoplanet Survey and SOPHIE échelle spectrograph.

Detection[edit]

The planet was discovered by observing the amount of stellar flux reaching the Earth. The existence of the planet was confirmed by also observing the reflected starlight from the planet, the shape of the star due to gravitational tug from the planet and radial velocity method. Finally, part of the planet was found transiting the parent star with secondary occultation also being detected.[2][3]

It is the first planet detected using Einstein's special relativity.

Characteristics[edit]

Kepler-76b is slightly denser than Jupiter indicating that it is not a Puffy planet.

References[edit]

arXiv:1304.6841

External links[edit]

Coordinates: Sky map 18h 52m 51.06019s, +45° 20′ 59.507″