Discovery | |
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Discovery site | Kepler Space Observatory |
Discovery date | 2015[2] |
Transit | |
Orbital characteristics | |
0.24200 AU (36,203,000 km) | |
Eccentricity | >0.340 |
101.11141000 d | |
Inclination | 89.930 |
Star | Kepler-440 |
Physical characteristics | |
Mean radius | 1.860 R🜨 |
Temperature | 273 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]
Kepler-440b is a [super-Earth] with a radius 1.86 times that of Earth. The planet orbits Kepler-440 once every 101.1 days.[1]
The planet was announced as being located within the habitable zone of Kepler-440, a region where liquid water could exist on the surface of the planet.[1]
Notable Exoplanets – Kepler Space Telescope |
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Confirmed small exoplanets in habitable zones.
(Kepler-62e, Kepler-62f, Kepler-186f, Kepler-296e, Kepler-296f, Kepler-438b, Kepler-440b, Kepler-442b) (Kepler Space Telescope; 6 January 2015).[4] |
Earth | Kepler-440b |
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