かに座55番星e
1. 55 Cancri e55 Cancri e (abbreviated 55 Cnc e) is an extrasolar planet with half the mass of Neptune orbiting the Sun-like star 55 Cancri A. Its mass is about 7.8 Earth masses (and twice the width of Earth), thus classifying it as the first Super-Earth discovered around a main sequence star, predating Gliese 876 d by a year. It takes less than 18 hours to complete an orbit and is the innermost known planet in its planetary system. 55 Cancri e was discovered on August 30, 2004.
Read “55 Cancri e” on English Wikipedia
Read “かに座55番星e” on Japanese Wikipedia
Read “55 Cancri e” on DBpedia
Read “55 Cancri e” on English Wikipedia
Read “かに座55番星e” on Japanese Wikipedia
Read “55 Cancri e” on DBpedia
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