Kepler-440b

Kepler-440b[1]
Discovery
Discovery siteKepler Space Observatory
Discovery date2015[2]
Transit
Orbital characteristics
0.24200 AU (36,203,000 km)
Eccentricity>0.340
101.11141000 d
Inclination89.930
StarKepler-440
Physical characteristics
1.860 R🜨
Temperature273 K (0 °C; 32 °F).[3]

Kepler-440b (also known by its Kepler Object of Interest designation KOI-4087.01) is a confirmed super-Earth exoplanet orbiting within the habitable zone of Kepler-440, about 850 light-years (261 pc) from Earth.[1] The planet was discovered by NASA's Kepler spacecraft using the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured. NASA announced the confirmation of the exoplanet on 6 January 2015.[4]

  1. ^ a b Cite error: The named reference Keplercitepaper-060115 was invoked but never defined (see the help page).
  2. ^ Staff (2015). "Planet Kepler-440 b". Extrasolar Planets Encyclopaedia. Retrieved 11 January 2015.
  3. ^ "HEC: Data of Potential Habitable Worlds". Archived from the original on 1 June 2012. Retrieved 25 January 2015.
  4. ^ Clavin, Whitney; Chou, Felicia; Johnson, Michele (6 January 2015). "NASA's Kepler Marks 1,000th Exoplanet Discovery, Uncovers More Small Worlds in Habitable Zones". NASA. Retrieved 6 January 2015.