Kepler-296e

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Exoplanet
Kepler-296e
Constellation lyre
Position
equinox : J2000.0
Right ascension 19h 06m 09,602s
declination + 49 ° 26 ′ 14.37 ″
Orbit data
Central star Kepler-296 A
Major semi-axis 0.149  +0.035−0.024 AE
eccentricity > 0.10  +0.14−0.10
Period of circulation 34.14204  +0.00025−0.00029
Further data
radius 1.48  +0.16−0.25
distance 226  +28−18 pc
history
Date of discovery 2014
Catalog names
KIC 11497958 e, KOI-1422.05, KOI-1422 e, Kepler-296 e, 2MASS J19060960 + 4926143 e, WISE J190609.59 + 492614.2 e

Kepler-296E is a Exoplanet that the red dwarf Kepler-296 A in about 737 light-years from the sun away binary system Kepler-296 in the constellation lyre encircled. It is the second outermost of five planets in the star's planetary system .

discovery

The planet was discovered using the transit method based on measurements from the Kepler Space Telescope and published in February 2014 together with around 700 other exoplanets. A team of astronomers under Guillermo Torres was able to confirm the existence of the planet (and eleven others) and published this in early 2015.

properties

Kepler-296e has about 1.48 times the radius of the earth and needs a little more than 34 days to orbit its central star once. Its major orbital half-axis is about 0.149 AU , which is significantly less than that of the planet Mercury in the solar system . However, Kepler-296 A is a red dwarf that is much smaller and less massive than the sun.

Kepler-296e receives about 1.40 times the radiation energy from Kepler-296 A like the earth does from the sun and is, like its outer neighbor planet Kepler-296f , still within the habitable zone of its central star. In the Habitable Exoplanets Catalog of the Planetary Hability Laboratory ( PHL ) of the University of Puerto Rico at Arecibo , it ranks second behind Kepler-438b with an Earth Similarity Index (ESI) of 0.85 .

Individual evidence

  1. ↑ SIMBAD: Kepler-296. Retrieved August 2, 2015 .
  2. ↑ a b c d e NASA Exoplanet Archive: Kepler-296. Retrieved August 2, 2015 .
  3. ^ Jason F. Rowe et al .: Validation of Kepler's Multiple Planet Candidates. III: Light Curve Analysis & Announcement of Hundreds of New Multi-planet Systems . arxiv : 1402.6534 .
  4. ↑ a b c Guillermo Torres et al .: Validation of Twelve Small Kepler Transiting Planets in the Habitable Zone . arxiv : 1501.01101 .
  5. ^ Thomas Barclay et al .: The Five Planets in the Kepler-296 Binary System All Orbit the Primary: A Statistical and Analytical Analysis . arxiv : 1505.01845 .
  6. ^ University of Puerto Rico at Arecibo: Habitable Exoplanets Catalog. Retrieved August 2, 2015 .