m Reverted edits by 66.219.236.161 (talk) (HG) (3.3.5)
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update distance and replace ref
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{{Planetbox star |
{{Planetbox star |
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| star = [[Kepler-419]] (KOI-1474) |
| star = [[Kepler-419]] (KOI-1474) |
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⚫ | |||
⚫ | |||
| constell=[[Cygnus (constellation)|Cygnus]] |
| constell=[[Cygnus (constellation)|Cygnus]] |
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⚫ | |||
⚫ | |||
| app_mag = 13<ref name=kic>{{cite journal|bibcode= 2009yCat.5133....0K|title= VizieR Online Data Catalog: Kepler Input Catalog (Kepler Mission Team, 2009)|journal= VizieR On-line Data Catalog: V/133. Originally published in: 2009yCat.5133....0K|volume= 5133|author1= Kepler Mission Team|year= 2009}}</ref> |
| app_mag = 13<ref name=kic>{{cite journal|bibcode= 2009yCat.5133....0K|title= VizieR Online Data Catalog: Kepler Input Catalog (Kepler Mission Team, 2009)|journal= VizieR On-line Data Catalog: V/133. Originally published in: 2009yCat.5133....0K|volume= 5133|author1= Kepler Mission Team|year= 2009}}</ref> |
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| dist_ly = |
| dist_ly = {{val|3400|90}}<ref name="Gaia DR2"/> |
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| dist_pc = {{val|1040|30}}<ref name="Gaia DR2"/> |
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| dist_pc = 780<ref name=dawson2012>{{cite journal|bibcode=2012ApJ...761..163D|arxiv=1206.5579|title=The Photoeccentric Effect and Proto-hot Jupiters. II. KOI-1474.01, a Candidate Eccentric Planet Perturbed by an Unseen Companion|journal=The Astrophysical Journal|volume=761|issue=2|pages=163|author1=Dawson|first1=Rebekah I.|last2=Johnson|first2=John Asher|last3=Morton|first3=Timothy D.|last4=Crepp|first4=Justin R.|last5=Fabrycky|first5=Daniel C.|last6=Murray-Clay|first6=Ruth A.|last7=Howard|first7=Andrew W.|year=2012|doi=10.1088/0004-637X/761/2/163}}</ref> |
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| class = F?V<ref name="Dawson"/> |
| class = F?V<ref name="Dawson"/> |
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| mass = 1.39 (± 0.08)<ref name="Dawson"/> |
| mass = 1.39 (± 0.08)<ref name="Dawson"/> |
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{{Planetbox end}} |
{{Planetbox end}} |
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'''Kepler-419b''' (also known by its Kepler Object of Interest designation ''KOI-1474.01'') is a [[hot Jupiter]] [[exoplanet]] orbiting the star [[Kepler-419]], the outermost of two such planets discovered by [[NASA]]'s [[Kepler (spacecraft)|Kepler spacecraft]]. It is located about |
'''Kepler-419b''' (also known by its Kepler Object of Interest designation ''KOI-1474.01'') is a [[hot Jupiter]] [[exoplanet]] orbiting the star [[Kepler-419]], the outermost of two such planets discovered by [[NASA]]'s [[Kepler (spacecraft)|Kepler spacecraft]]. It is located about 3,400 [[light-year]]s (1040 [[parsec]]s from Earth in the constellation [[Cygnus (constellation)|Cygnus]].<ref name="Gaia DR2"/><ref name="Dawson"/> The exoplanet was found by using the [[transit method]], in which the dimming effect that a planet causes as it crosses in front of its star is measured. |
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== |
==Characteristics== |
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===Mass, radius and temperature=== |
===Mass, radius and temperature=== |
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The star's [[apparent magnitude]], or how bright it appears from Earth's perspective, is 13. It is too dim to be seen with the naked eye. |
The star's [[apparent magnitude]], or how bright it appears from Earth's perspective, is 13. It is too dim to be seen with the naked eye. |
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=== |
===Orbit=== |
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Kepler-419c orbits its host star with 270% of the Sun's luminosity (2.7 {{solar luminosity}}) about every 67 days at a distance of 0.37 [[astronomical unit|AU]] (close to the orbital distance of Mercury from the Sun, which is 0.38 AU). It has a highly eccentric orbit, with an eccentricity of 0.833. |
Kepler-419c orbits its host star with 270% of the Sun's luminosity (2.7 {{solar luminosity}}) about every 67 days at a distance of 0.37 [[astronomical unit|AU]] (close to the orbital distance of Mercury from the Sun, which is 0.38 AU). It has a highly eccentric orbit, with an eccentricity of 0.833. |
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==References== |
==References== |
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{{reflist |
{{reflist|refs= |
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<ref name="Gaia DR2">{{cite DR2|2135604425595213440}}</ref> |
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}} |
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==External links== |
==External links== |
Template:Planetbox begin Template:Planetbox star Template:Planetbox character Template:Planetbox orbit Template:Planetbox discovery Template:Planetbox catalog Template:Planetbox reference Template:Planetbox end
Kepler-419b (also known by its Kepler Object of Interest designation KOI-1474.01) is a hot Jupiter exoplanet orbiting the star Kepler-419, the outermost of two such planets discovered by NASA's Kepler spacecraft. It is located about 3,400 light-years (1040 parsecs from Earth in the constellation Cygnus.[1][2] The exoplanet was found by using the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured.
Kepler-419b is a hot Jupiter, an exoplanet that has a radius and mass near that of the planet Jupiter, but with an extremely high temperature. It has a temperature of 505 K (232 °C; 449 °F).[3] It has a mass of 2.5 MJ and a radius of 0.96 RJ.
The planet orbits an (F-type) star named Kepler-419. The star has a mass of 1.39 M☉ and a radius 1.75 R☉. It has a surface temperatures of 6430 K and is 2.8 billion years old. In comparison, the Sun is about 4.6 billion years old[4] and has a surface temperature of 5778 K.[5]
The star's apparent magnitude, or how bright it appears from Earth's perspective, is 13. It is too dim to be seen with the naked eye.
Kepler-419c orbits its host star with 270% of the Sun's luminosity (2.7 L☉) about every 67 days at a distance of 0.37 AU (close to the orbital distance of Mercury from the Sun, which is 0.38 AU). It has a highly eccentric orbit, with an eccentricity of 0.833.
In 2009, NASA's Kepler spacecraft was completing observing stars on its photometer, the instrument it uses to detect transit events, in which a planet crosses in front of and dims its host star for a brief and roughly regular period of time. In this last test, Kepler observed 50000 stars in the Kepler Input Catalog, including Kepler-419, the preliminary light curves were sent to the Kepler science team for analysis, who chose obvious planetary companions from the bunch for follow-up at observatories. Observations for the potential exoplanet candidates took place between 13 May 2009 and 17 March 2012. After observing the respective transits, the first planet, Kepler-419b, was announced.
Dawson
was invoked but never defined (see the help page).
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