space motion concept from the Astronomy knowledge base

Astronomy View all facts Glossary Help

Next velocity: tangential velocity Up: velocity Previous velocity: radial velocity

space motion

subject fact

space motion has definition Velocity of a star with respect to the Sun; hypotenuse of the right triangle formed by its radial and tangential velocities (cf. peculiar velocity). Space motion vectors are U (in the direction of the galactic anticenter), V (in the direction of galactic rotation), and W (in the direction of the galactic north pole). has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:33:27.0
is a kind of velocity

velocity has base unit length per unit time 2001-09-27 09:33:26.0

quantity has unit 2001-09-27 09:33:12.0

number has value 2001-09-27 09:32:57.0

space motion	has definition Velocity of a star with respect to the Sun; hypotenuse of the right triangle formed by its radial and tangential velocities (cf. peculiar velocity). Space motion vectors are U (in the direction of the galactic anticenter), V (in the direction of galactic rotation), and W (in the direction of the galactic north pole).
space motion	is a kind of velocity
velocity	has base unit length per unit time
quantity	has unit
number	has value