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Thread: M Class Planets May Be Common?

  1. #1
    Join Date
    Jul 2000
    Edina, MN, USA

    M Class Planets May Be Common?

  2. #2
    Join Date
    Mar 2001
    Bremen, Germany
    Don't want to spoil your fun, but earth-like planets are not "M-Class". Current technology cannot determine the exact composition of planets, because visual detection would be necessary for that ( spectroscopy ). "Earth-like" planets means they are terrestial, which refers to the composition and density of the planet. They are no gas-giants, but solid planets. Pluto is also no terrestial planet, because of a fewer density.
    We came in peace, for all mankind - Apollo 11

  3. #3
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