peculiar motion
Quick Summary
In astronomy, peculiar motion refers to a star's actual movement after accounting for the Sun's motion. This is distinct from its observed proper motion, which is its apparent movement across the sky perpendicular to our line of sight. Radial velocity, on the other hand, measures a star's motion directly toward or away from us.123
By combining measurements of proper motion and radial velocity, astronomers can determine a star's complete space motion. This allows for a more accurate understanding of how stars move within the galaxy, independent of our own solar system's movement.31
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Milky Way GalaxySolar motion calculations from radial velocitiesā¦the second is that the peculiar motionsāthe motions of individual stars with respect to that standard of restāare randomly distributed. Considering the geometry then provides a mathematical solution for the motion of the Sun through the average rest frame of the stars being considered.
Read Moreā¦the second is that the peculiar motionsāthe motions of individual stars with respect to that standard of restāare randomly distributed. Considering the geometry then provides a mathematical solution for the motion of the Sun through the average rest frame of the stars being considered.
Read More- Milky Way GalaxySolar motion solutions
The peculiar motion of the Sun is a result of its relatively large age and a somewhat noncircular orbit. It is generally true that stars of later spectral types show both greater dispersions and greater values for solar motion, and this characteristic is interpreted to beā¦
Read MoreThe peculiar motion of the Sun is a result of its relatively large age and a somewhat noncircular orbit. It is generally true that stars of later spectral types show both greater dispersions and greater values for solar motion, and this characteristic is interpreted to beā¦
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