What is another word for peculiar velocity?
Pronunciation: [pɪkjˈuːli͡ə vəlˈɒsɪti] (IPA) 
Peculiar velocity refers to the velocity of an astronomical object relative to its surrounding frame of reference. While this term is commonly used in astrophysics, there are several synonyms that can be used interchangeably. Some of these synonyms include peculiar motion, local motion, and proper motion. Additionally, the term redshift, which refers to the shift in wavelength of light due to an object's motion away from an observer, can also be used in certain contexts. Understanding these synonyms is important for accurately describing the motion and behavior of celestial objects, as well as for communicating effectively with other astronomers and astrophysicists.
