Kepler-37: Difference between revisions

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	'''Kepler-37''' is a ] 215.2 ] away in the ] ]. It is host to the ] Kepler-37b, Kepler-37c and Kepler-37d. They all orbit very close to the star. Kepler-37 has a mass of about 80.3 percent the ], and a radius of about 77 percent. It is roughly 6 billion years old.		'''Kepler-37''' is a ] 215.2 ] away in the ] ]. It is host to the ] Kepler-37b, Kepler-37c and Kepler-37d. They all orbit very close to the star. Kepler-37 has a mass of about 80.3 percent the ]and a radius of about 77 percent. It is slightly cooler than our Sun at 5,417 Kelvin and is roughly 6 billion years old.

	== Planetary system ==		== Planetary system ==

			Kepler-37b is closest to the star. It is the smallest known exoplanet as of February 2013. At 3865 kilometers in diameter it is slightly larger than ] ]. It orbits Kepler-37 once every 13 Earth days at a distance close to 0.1 AU and is too small and too close to its star to maintain an atmosphere.
	Kepler-37b is closest to the star. It is
	the smallest known exoplanet as of February 2013.
	At 3865 kilometers in diameter it is barely larger
	than ] ]. It orbits Kepler-37
	once every 13 Earth days and is too small and too close
	to its star to maintain an atmosphere.

			Kepler-37c has around three-quarters the radius of Earth and it orbits about every 21 days at a distance of nearly 0.14 AU.
	Kepler-37c is similar in size to ].

	Kepler-37d is about ~~three times~~ the ~~size~~ of Earth. It has an orbital period of ~~39.792187~~ Earth days.		Kepler-37d has about twice the radius of Earth. It has an orbital period of around 40 Earth days at a distance of nearly 0.21 AU.

	==References==		==References==

Revision as of 06:58, 21 February 2013

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Kepler-37
Diagram showing star positions and boundaries of the constellation and its surroundings Location of Kepler-37 in (circled)

Kepler-37 is a star 215.2 light years away in the constellation Lyra. It is host to the exoplanets Kepler-37b, Kepler-37c and Kepler-37d. They all orbit very close to the star. Kepler-37 has a mass of about 80.3 percent the Sun'sand a radius of about 77 percent. It is slightly cooler than our Sun at 5,417 Kelvin and is roughly 6 billion years old.

Planetary system

Kepler-37b is closest to the star. It is the smallest known exoplanet as of February 2013. At 3865 kilometers in diameter it is slightly larger than Earth's moon. It orbits Kepler-37 once every 13 Earth days at a distance close to 0.1 AU and is too small and too close to its star to maintain an atmosphere.

Kepler-37c has around three-quarters the radius of Earth and it orbits about every 21 days at a distance of nearly 0.14 AU.

Kepler-37d has about twice the radius of Earth. It has an orbital period of around 40 Earth days at a distance of nearly 0.21 AU.

References

Nature,
Bad Astronomy,
NASA,
JPL

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