Kepler-19c is an
extra-solar planet orbiting the star
Kepler-19 approximately 717
light years 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 ...
. 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.
See also
*
List of extrasolar planet firsts
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 ]
[{{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 ]
External links
Ames research
12:21
Exoplanets discovered in 2011
19c