| Discovery | |
|---|---|
| Discovery site | Kepler Space Observatory |
| Discovery date | 2015[2] |
| Transit | |
| Orbital characteristics | |
| 0.24200 AU (36,203,000 km) | |
| Eccentricity | >0.340 |
| 101.11141000d | |
| Inclination | 89.930 |
| Star | Kepler-440 |
| Physical characteristics | |
| 1.860R🜨 | |
| Temperature | 273 K (0 °C; 32 °F).[3] |
Kepler-440b (also known by itsKepler Object of Interest designation KOI-4087.01) is a confirmedsuper-Earthexoplanet orbiting within thehabitable zone ofKepler-440, about 850 light-years (261 pc) fromEarth.[1] The planet was discovered byNASA'sKepler spacecraft using thetransit 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 ofEarth. The planet orbits Kepler-440 once every 101.1 days.[1]
The planet was announced as being located within thehabitable zone of Kepler-440, a region whereliquid water could exist on the surface of theplanet.[1]
| Notable Exoplanets –Kepler Space Telescope |
|---|
 Confirmed small exoplanets inhabitable 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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