Q17057997
Sign in to saveKey facts
- Planet.name
- Kepler-438b
- Planet.image
- Exoplanet Comparison Kepler-186 f.png
- Planet.caption
- Approximate size comparison of Kepler-438b (right) with Earth
- Planet.discoverer
- Kepler spacecraft
- Planet.discovered
- 2015
- Planet.discovery_method
- Transit
- Planet.apsis
- astron
- Planet.period
- 35.23319 d
- Planet.inclination
- 89.860
- Planet.star
- Kepler-438
- Planet.mean_radius
- 1.12 (± 0.16)
via Wikipedia infobox
Article
9 sectionsContents
- Characteristics
- Mass, radius and temperature
- Host star
- Orbit and possible moons
- Habitability
- Discovery and follow-up studies
- See also
- References
- External links
Kepler-438b (also known by its Kepler Object of Interest designation KOI-3284.01) is a confirmed near-Earth-sized exoplanet. It is likely rocky. It orbits on the inner edge of the habitable zone of a red dwarf, Kepler-438, about 460.2 light-years from Earth in the constellation Lyra. It receives 1.4 times the solar flux of Earth. 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.
==Characteristics== ===Mass, radius and temperature=== Kepler-438b is an Earth-sized planet, an exoplanet that has a mass and radius close to that of Earth. It has a radius of 1.12 , and an unknown mass. It has an equilibrium temperature of , close to that of Earth.