tertiary moonとは 意味・読み方・使い方

名詞

tertiary moon

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   • 1976, National Aeronautics and Space Administration (contributor), NASA Technical Translation, page 38:

     In addition he follows the idea that the earth has already known a small attendant moon, the tertiary moon, to approach the earth in spiral orbits which contracted more and more until it finally fell down onto the earth.

参考

• secondary moon