Kepler-442b
Sign in to saveKepler-442b (also known by its Kepler object of interest designation KOI-4742.01) is a confirmed near-Earth-sized exoplanet, likely rocky, orbiting within the habitable zone of the K-type main-sequence star Kepler-442, about from Earth in the constellation of Lyra.
Key facts
- Planet.period
- d
- Planet.name
- Kepler-442b
- Planet.image
- Exoplanet Comparison K2-72 e (ver 2).png
- Planet.caption
- Approximate size comparison of Kepler-442b (left) with Earth
- Planet.discoverer
- Kepler spacecraft
- Planet.discovered
- 6 January 2015
- Planet.discovery_method
- Transit
- Planet.apsis
- astron
- Planet.semimajor
- AU
- Planet.star
- Kepler-442 (KOI-4742)
- Planet.single_temperature
- Teq:
via Wikipedia infobox
Article
11 sectionsContents
- Physical characteristics
- Mass, radius, and temperature
- Host star
- Orbit
- Habitability
- Stellar factors
- Tidal effects and further reviews
- Discovery and follow-up studies
- See also
- References
- External links
Kepler-442b (also known by its Kepler object of interest designation KOI-4742.01) is a confirmed near-Earth-sized exoplanet, likely rocky, orbiting within the habitable zone of the K-type main-sequence star Kepler-442, about from Earth in the constellation of Lyra.
The planet orbits its host star at a distance of about with an orbital period of roughly 112.3 days. It has a mass of around 2.3 and has a radius of about 1.34 times that of Earth. It is one of the more promising candidates for potential habitability, as its parent star is at least 40% less massive than the Sun – thus, it can have a lifespan of about 30 billion years.