relative proper motion
Astronomy
noun
The proper motion of a star or other celestial object relative to a set of reference points.
Origin
Late 18th century; earliest use found in William Herschel (1738–1822), musician and astronomer.
- live with
- live with oneself
- live-work
- livid
- lividity
- lividly
- lividness
- living
- living conditions
- living cultural centre
- living dead
- living death
- living doll
- living expenses
- living quarters
- living rock
- living room
- living space
- living standard
- living statue
- living stone
- Livingstone
- Livingstone daisy
- Livingstone, David
- Livingston, Henry Brockholst