Page 538 - 89 history of astronomy_opt
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tune’s satellite in 1846. All of the satellites
                                         of Uranus have retrograde motion, and their
                                                                  ˆ
                                         orbits are inclined about 80A to the eclip-
                                         tic.
                                            The spectroscope has shown the exis-
                                         tence of an absorbing atmosphere on Jupiter
                                         and Saturn, and there are suspicions that
                                         they partake something of the character of
                                         the sun, and emit some light besides reflect-
                                                           538
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