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Astronomical Dialogues.
nets, as their Center, and together with it, move also round the Sun.
Thus the Moon is a Secondary Planet, whose Center of Motion is our Earth, on which she constantly attends, and her Circle round us she performs in about a Month's Time, while at the same time, she revolves together with the Earth round the Sun in its Annual Course. Satellites.Jupiter hath four such Moons or Satellites; and Saturn five, revolving round Him: But it doth not yet appear that Venus or Mars have any Satellites at all.
As for Mars, said the Lady, I shan't trouble my Head about him; tho' one would think, the God of War, or Captain-General of Heaven, might command a few Guards or Followers: But I will never forgive the Astronomers, nor believe at all in Telescopes, if they don't find out that Venus hath some Attendants; that is such an Affront to our Sex, as we must never pass by. But to be serious, I suppose, Mercury and Venus being so near the Sun, have no occasion to be lighted in the Night by Moons, as the more remote Planets have; tho' why our Earth should have one, and yet Mars none, is not, methinks, so easily to be ac-counted
