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发帖数: 1994 | 1 HD70642: A Star with Similar Planets
Illustration Credit & Copyright: David A. Hardy, PPARC
Explanation: Astronomers have discovered a planetary system more similar to our own
Solar System than any known previously. The bright star HD70642, visible with binoculars
toward the constellation of Puppis, was already known to be a star like our Sun. Now a planet
with twice Jupiter's mass has been discovered in a nearly circular orbit at approximately half
the orbital distance of Jupiter. Su |
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