Peculiar motion or peculiar velocity refers to the true velocity of an object, relative to a rest frame.
Read more about Peculiar Velocity: Galactic Astronomy, Cosmology
Famous quotes containing the word peculiar:
“So wretched is man that he would weary even without any cause for weariness from the peculiar state of his disposition; and so frivolous is he that, though full of a thousand causes for weariness, the least thing, such as playing billiards or hitting a ball, is sufficient to amuse him.”
—Blaise Pascal (1623–1662)