Kepler-56c

{{Short description|Hot Jupiter orbiting Kepler-56}}

{{Infobox planet

| name = Kepler-56c

| image = Kepler-56 System Diagram.jpg

| caption = A diagram of the planetary system of Kepler-56

| discoverer = Daniel Huber et al.

| discovered = 16 October 2013

| discovery_method = Transit method

| apsis = astron

| semimajor = {{convert|0.1652|±|0.0059|AU|km|abbr=on}}{{cite journal|bibcode=2013Sci...342..331H|doi=10.1126/science.1242066|pmid=24136961|arxiv=1310.4503|display-authors=1|title=Stellar Spin-Orbit Misalignment in a Multiplanet System|journal=Science|volume=342|issue=6156|pages=331–4|year=2013|last1=Huber|first1=D.|last2=Carter|first2=J. A.|last3=Barbieri|first3=M.|last4=Miglio|first4=A.|last5=Deck|first5=K. M.|last6=Fabrycky|first6=D. C.|last7=Montet|first7=B. T.|last8=Buchhave|first8=L. A.|last9=Chaplin|first9=W. J.|last10=Hekker|first10=S.|last11=Montalban|first11=J.|last12=Sanchis-Ojeda|first12=R.|last13=Basu|first13=S.|last14=Bedding|first14=T. R.|last15=Campante|first15=T. L.|last16=Christensen-Dalsgaard|first16=J.|last17=Elsworth|first17=Y. P.|last18=Stello|first18=D.|last19=Arentoft|first19=T.|last20=Ford|first20=E. B.|last21=Gilliland|first21=R. L.|last22=Handberg|first22=R.|last23=Howard|first23=A. W.|last24=Isaacson|first24=H.|last25=Johnson|first25=J. A.|last26=Karoff|first26=C.|last27=Kawaler|first27=S. D.|last28=Kjeldsen|first28=H.|last29=Latham|first29=D. W.|last30=Lund|first30=M. N.|s2cid=1056370}}

| period = {{val|21.40239|+0.00059|-0.00062}} d

| star = Kepler-56

| mean_radius = 9.80 ± 0.46 {{Earth radius|link=y}}

| mass = {{val|181|+21|-19}} {{Earth mass|sym=y|link=y}}

| density = {{val|1.06|+0.14|-0.13}} g cm⁻³

}}

Kepler-56c is a hot Jupiter{{Cite journal|last1=Huber|first1=Daniel|last2=Carter|first2=Joshua A.|last3=Barbieri|first3=Mauro|last4=Miglio|first4=Andrea|last5=Deck|first5=Katherine M.|last6=Fabrycky|first6=Daniel C.|last7=Montet|first7=Benjamin T.|last8=Buchhave|first8=Lars A.|last9=Chaplin|first9=William J.|last10=Hekker|first10=Saskia|last11=Montalbán|first11=Josefina|date=2013-10-18|title=Stellar Spin-Orbit Misalignment in a Multiplanet System|url=https://www.science.org/doi/10.1126/science.1242066|journal=Science|volume=342|issue=6156|pages=331–334|doi=10.1126/science.1242066|pmid=24136961 |bibcode=2013Sci...342..331H |s2cid=1056370 |display-authors=2|arxiv=1310.4503}} (a class of exoplanets) orbiting the star Kepler-56, located in the constellation Cygnus. It was discovered by the Kepler telescope in October 2013. It orbits its parent star only {{Convert|0.17|AU|e6mi e6km|abbr=unit|lk=on}} away; at its distance, it completes an orbit once every 21.4 days. Its orbit is significantly misaligned with its parent star's equator. Further studies have revealed that a third planet, 56d, is responsible for misaligning the orbits of both planets.

Both Kepler-56b and Kepler-56c will be devoured by their parent star in about 130 and 155 million years, respectively.{{cite news|url=http://www.ibtimes.com/cosmic-snack-planets-kepler-56b-kepler-56c-will-be-swallowed-whole-host-star-1593918|title=Cosmic Snack: Planets Kepler-56b And Kepler-56c Will Be Swallowed Whole By Host Star|work=International Business Times|author=Charles Poladian|date=2014-06-03|access-date=7 August 2017}} Further research shows that it will have its atmosphere boiled away by intense heat from the star, and it will be stretched by the strengthening stellar tides.