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:
“The peculiarity of sculpture is that it creates a three-dimensional object in space. Painting may strive to give on a two-dimensional plane, the illusion of space, but it is space itself as a perceived quantity that becomes the peculiar concern of the sculptor. We may say that for the painter space is a luxury; for the sculptor it is a necessity.”
—Sir Herbert Read (1893–1968)