Kepler-76b

{{Short description|Jovian extrasolar planet orbiting Kepler-76}}

{{Infobox planet

| name = Kepler-76b

| discovered = May, 2013

| discovery_method = Stellar flux variations due to relativistic beaming,
Transit (Kepler Mission)

| apsis = astron

| semimajor = 0.028 AU

| eccentricity = ~0

| period = 1.54492875 d

| inclination = 78

| star = Kepler-76

| mean_radius = 1.25 {{Jupiter radius|link=y}}

| mass = ~2 {{Jupiter mass|link=y}}

| density = {{convert|1.4|g/cm3|lk=on|abbr=on}}

| albedo = 0.23 (visible light)

| single_temperature = 2830{{±|50|30}}{{citation|arxiv=1905.07781|year=2019|title=Variability in the Atmosphere of the Hot Jupiter Kepler-76b|doi=10.3847/1538-3881/ab1b30 |last1=Jackson |first1=Brian |last2=Adams |first2=Elisabeth |last3=Sandidge |first3=Wesley |last4=Kreyche |first4=Steven |last5=Briggs |first5=Jennifer |journal=The Astronomical Journal |volume=157 |issue=6 |page=239 |bibcode=2019AJ....157..239J |s2cid=159041579 |doi-access=free }}

}}

Kepler-76b is a gas giant with mass about two times that of Jupiter.

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

Detection

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.{{cite web|url=http://kepler.nasa.gov/news/nasakeplernews/index.cfm?fuseaction=ShowNews&NewsID=266 |archive-url=https://web.archive.org/web/20131123233653/http://kepler.nasa.gov/news/nasakeplernews/index.cfm?FuseAction=ShowNews&NewsID=266 |url-status=dead |archive-date=November 23, 2013 |title=New Method of Finding Planets Scores its First Discovery| publisher=kepler.nasa.gov |date= |accessdate=May 14, 2013}}

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

Characteristics

Kepler-76b is slightly denser than Jupiter indicating that it is not a puffy planet. Nonetheless, it is very hot with measured dayside temperature of 2830{{±|50|30}} K. It also exhibits a strong winds and variable clouds in the atmosphere.

References

{{reflist|refs=

{{cite journal | title=BEER Analysis of Kepler and CoRoT Light Curves. I. Discovery of Kepler-76b: A Hot Jupiter with Evidence for Superrotation | last1=Faigler | first1=S. | last2=Tal-Or | first2=L. | last3=Mazeh | first3=T. | last4=Latham | first4=D. W. | last5=Buchhave | first5=L. A. | display-authors=1 | journal=The Astrophysical Journal | volume=771 | issue=1 | at=26 | year=2013 | arxiv=1304.6841 | bibcode=2013ApJ...771...26F | doi=10.1088/0004-637X/771/1/26 | s2cid=119247392 }}

}}

External links

[https://web.archive.org/web/20100527104316/http://kepler.nasa.gov/Mission/discoveries/ Table of confirmed planets] at NASA, Kepler mission

Category:Exoplanets discovered in 2013

Category:Exoplanets discovered by the Kepler space telescope

Category:Hot Jupiters

Category:Cygnus (constellation)