Kepler-1649b

Kepler-1649b is an exoplanet orbiting the red dwarf star Kepler-1649, discovered in 2017.^[2] It is similar to Venus,^[3][4] but in the past it was thought to be a candidate for habitability.^[5]

Kepler-1649b

Discovery
Discovered by	Kepler spacecraft
Discovery date	2017[1]
Detection method	Transit
Designations
Alternative names	KOI-3138.01
Orbital characteristics
Semi-major axis	0.0514 ± 0.0028 AU
Orbital period (sidereal)	8.689099 ± 0.000025 d
Inclination	89.150
Star	Kepler-1649
Physical characteristics
Mean radius	1.017 ± 0.051 R🜨
Mass	1.03 M🜨

Host star

Main article: Kepler-1649

Kepler-1649 is a type-M red dwarf star estimated to be roughly ¼ the radius of the Sun ^[6] with only two confirmed planets in its orbit, the other being Kepler-1649c.^[7] Kepler-1649c is similar to Earth from our own solar system in two ways: both Kepler-1649c and Earth have orbits roughly twice the radius of the previous known planets (Kepler-1649b and Venus respectively), and they are of similar size.

Orbit

Kepler-1649b takes only 8.6 Earth days to orbit Kepler-1649.

Artist's impression and size comparison of the two planets in the Kepler-1649 system with Earth