Astronomy:Kepler-33b

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Kepler-33b
Kepler-33 b.jpg
The size of Kepler-33b as compared to Earth and Jupiter
Discovery[1]
Discovered byJack Lissauer
Discovery siteMoffett Field, California
Discovery dateJanuary 26, 2012
Transit
Designations
KOI-707.05[2]
Orbital characteristics
0.0677±0.0014 AU[3]
Eccentricity0
Orbital period5.66793±0.00012 d[3]
Inclination86.39±1.17°[3]
90°[2]
astron|astron|helion}}2454964.8981±0.0075 jd[2]
Physical characteristics
Mean radius0.16±0.02 RJ[3]
3.6g[2]


Kepler-33b is an extrasolar planet orbiting Kepler-33 in the constellation Cygnus. It is one of five planets orbiting Kepler-33.

Discovery

Kepler-33b was, along with twenty-six other planets in eleven different planetary systems, confirmed to be a planet on January 26, 2012.[1][4]

The Kepler-33 system

Kepler-33b orbits its host star with 4 other planets. All five planets orbit its star closer than Mercury does to the Sun.[5] Of those five, Kepler-33b is closest.[4] All Kepler-33 planets are too close to be in the habitable zone.[6]

See also

  • List of planets discovered by the Kepler spacecraft

References

  1. 1.0 1.1 Lissauer, Jack J.; Marcy, Geoffrey W.; Rowe, Jason F.; Bryson, Stephen T.; Adams, Elisabeth; Buchhave, Lars A.; Ciardi, David R.; Cochran, William D. et al. (January 26, 2012). "Almost All of Kepler's Multiple Planet Candidates are Planets". The Astrophysical Journal 750 (2): 112. doi:10.1088/0004-637X/750/2/112. Bibcode2012ApJ...750..112L. 
  2. 2.0 2.1 2.2 2.3 "Kepler-33b". exoplanets.org. http://exoplanets.org/detail/Kepler-33. Retrieved December 31, 2012. 
  3. 3.0 3.1 3.2 3.3 "Kepler-33b". kepler.nasa.gov. http://kepler.nasa.gov/Mission/discoveries/kepler33b/. Retrieved December 31, 2012. 
  4. 4.0 4.1 "NASA's Kepler announces 11 planetary systems hosting 26 planets". kepler.nasa.gov. January 26, 2012. http://kepler.nasa.gov/news/nasakeplernews/index.cfm?FuseAction=ShowNews&NewsID=182. Retrieved December 31, 2012. 
  5. "NASA's Kepler mission announces 11 planetary systems hosting 26 planets". ucsc.edu. January 26, 2012. http://news.ucsc.edu/2012/01/kepler-planets.html. Retrieved December 31, 2012. 
  6. "Planet Kepler-33 b". hanno.rein.de. http://exoplanet.hanno-rein.de/system.php?id=Kepler-33+b. Retrieved December 31, 2012.