Kepler-37d

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Kepler-37d is an exoplanet discovered by the Kepler space telescope in February 2013. It is located 209 light years away, in the constellation Lyra. With an orbital period of 39.8 days, it is the largest of the three known planets orbiting its parent star Kepler-37.

Excerpt from the Wikipedia article “Kepler-37d”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: NASA/Ames/JPL-Caltech, Public domain, via Wikimedia Commons.