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.
Astronomical data · SIMBAD
- Object type
- Pl
- Distance
- 1,196 light-years
- Coordinates
- RA 285.3666° · Dec 39.2801°
via SIMBAD · CDS Strasbourg
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
Wikidata facts
- Distance from Earth
- 1120
- Radius
- 0.12
- Orbital period
- 112.3053
- Image
- Kepler442b(comp).jpg
Show 12 more facts
- Commons category
- Kepler (spacecraft)
- time of discovery or invention
- 2015-02-00
- catalog code
- Kepler-442b
- spectral class
- K3V (uncertain)
- right ascension
- 285.36655956809580
- declination
- 39.28006211349695
- orbital inclination
- 89.94
- semi-major axis of an orbit
- 0.409
- right ascension component of proper motion
- 7.785
- declination component of proper motion
- 1.917
- orbital eccentricity
- 0.04
- parallax
- 2.7037
Sources (1)
via Wikidata · CC0
~7 min read
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.