Kepler-438 b
Sign in to saveAlso known as Emergency Backup Earth
Astronomical data · SIMBAD
- Object type
- Pl
- Distance
- 587 light-years
- Coordinates
- RA 281.6458° · Dec 41.9511°
via SIMBAD · CDS Strasbourg
Key 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
Wikidata facts
- Constellation
- Lyra
- Parent body
- Kepler-438
- Radius
- 0.1
- Orbital period
- 35.23319
Show 14 more facts
- time of discovery or invention
- 2015-02-00
- discovery method
- transit method
- located in/on physical feature
- circumstellar habitable zone
- catalog code
- Kepler-438b
- discoverer or inventor
- Kepler Space Telescope
- right ascension
- 281.64582068624406
- declination
- 41.95108981042500
- epoch
- J2000.0
- semi-major axis of an orbit
- 0.166
- orbital inclination
- 89.86
- orbital eccentricity
- 0.03
- right ascension component of proper motion
- -16.762
- declination component of proper motion
- -4.921
- parallax
- 5.1035
via Wikidata · CC0
~5 min read
Encyclopedic overview
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.
Excerpted from Wikipedia’s “Kepler-438 b” article, available under the CC BY-SA 4.0 licence.