Kepler-19c is an

extra-solar planet An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first detect ...

orbiting the star Kepler-19 approximately 717

light year A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distance, astronomical distances and is equal to exactly , which is approximately 9.46 trillion km or 5.88 trillion mi. As defined by t ...

s from Earth.

Discovery

The planet was discovered as a result of examinations of data from the previously discovered exoplanet,

Kepler-19b Kepler-19b is a planet orbiting around the star Kepler-19. The planet has an orbital period of 9.3 days, with an estimated radius of roughly 2.2 times that of the Earth Earth is the third planet from the Sun and the only astronomical obje ...

. Timing variations in the

orbital period The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object. In astronomy, it usually applies to planets or asteroids orbiting the Sun, moons orbiting planets ...

of the first planet necessitated gravitational forces to be acting upon the planet, resulting from an additional body in the vicinity, acting to cause a variation of transition of five minutes per orbit. The lead author of the paper announcing the discovery was Sarah Ballard.

References

{{reflist, refs= {{cite journal , title=The Kepler-19 System: A Transiting 2.2R ⊕ Planet and a Second Planet Detected Via Transit Timing Variations , last1=Ballard , first1=Sarah , last2=Fabrycky , first2=Daniel , last3=Fressin , first3=Francois , last4=Charbonneau , first4=David , last5=Desert , first5=Jean-Michel , last6=Torres , first6=Guillermo , last7=Marcy , first7=Geoffrey , last8=Burke , first8=Christopher J. , last9=Isaacson , first9=Howard , last10=Henze , first10=Christopher , last11=Steffen , first11=Jason H. , last12=Ciardi , first12=David R. , last13=Howell , first13=Steven B. , last14=Cochran , first14=William D. , last15=Endl , first15=Michael , last16=Bryson , first16=Stephen T. , last17=Rowe , first17=Jason F. , last18=Holman , first18=Matthew J. , last19=Lissauer , first19=Jack J. , last20=Jenkins , first20=Jon M. , last21=Still , first21=Martin , last22=Ford , first22=Eric B. , last23=Christiansen , first23=Jessie L. , last24=Middour , first24=Christopher K. , last25=Haas , first25=Michael R. , last26=Li , first26=Jie , last27=Hall , first27=Jennifer R. , last28=McCauliff , first28=Sean , last29=Batalha , first29=Natalie M. , last30=Koch , first30=David G. , display-authors=1 , journal=The Astrophysical Journal , volume=743 , issue=2 , at=200 , year=2011 , arxiv=1109.1561 , bibcode=2011ApJ...743..200B , doi=10.1088/0004-637X/743/2/200 , s2cid=42698813 {{cite DR2}
Gaia Data Release 2 catalog entry
/ref> {{cite journal , title=The Kepler-19 System: A Thick-envelope Super-Earth with Two Neptune-mass Companions Characterized Using Radial Velocities and Transit Timing Variations , last1=Malavolta , first1=Luca , last2=Borsato , first2=Luca , last3=Granata , first3=Valentina , last4=Piotto , first4=Giampaolo , last5=Lopez , first5=Eric , last6=Vanderburg , first6=Andrew , last7=Figueira , first7=Pedro , last8=Mortier , first8=Annelies , last9=Nascimbeni , first9=Valerio , last10=Affer , first10=Laura , last11=Bonomo , first11=Aldo S. , last12=Bouchy , first12=Francois , last13=Buchhave , first13=Lars A. , last14=Charbonneau , first14=David , last15=Cameron , first15=Andrew Collier , last16=Cosentino , first16=Rosario , last17=Dressing , first17=Courtney D. , last18=Dumusque , first18=Xavier , last19=Fiorenzano , first19=Aldo F. M. , last20=Harutyunyan , first20=Avet , last21=Haywood , first21=Raphaëlle D. , last22=Johnson , first22=John Asher , last23=Latham , first23=David W. , last24=Lopez-Morales , first24=Mercedes , last25=Lovis , first25=Christophe , last26=Mayor , first26=Michel , last27=Micela , first27=Giusi , last28=Molinari , first28=Emilio , last29=Motalebi , first29=Fatemeh , last30=Pepe , first30=Francesco , display-authors=1 , journal=The Astronomical Journal , volume=153 , issue=5 , at=224 , year=2017 , arxiv=1703.06885 , bibcode=2017AJ....153..224M , doi=10.3847/1538-3881/aa6897 , s2cid=29845787 , doi-access=free

External links

Ames research
12:21 Exoplanets discovered in 2011 19c

Discovery

See also

References

External links