Meaning Of The Word Proper motion
What's the definition of Proper motion? Find Proper motion meanings, definitions and more at the Real Dictionary online.
Proper motion Meaning
| Proper motion Definition |
|---|
What's The Definition Of Proper motion?
proper motion in American English
noun: the angular motion of a star relative to a suitably defined frame of reference, expressed in seconds of arc per year proper motion in British English noun: the very small continuous change in the direction of motion of a star relative to the sun. It is determined from its radial and tangential motion |
More Definitions
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Definitions Of The Day
- Snake's head ‐ noun; noun: a European fritillary plant, Fritillaria…
- Carry coals to Newcastle ‐ to take something to a place where its kind exists…
- Adsorbate ‐ a gas, liquid, etc. taken up by adsorption; noun:…
- Lay person ‐ countable noun: A lay person is a person who is…
- Pang ‐ A pang is a sudden strong feeling or emotion…
- Unanticipatedly ‐ adverb: in an unanticipated or…
- Lifetime member ‐
- Ice rink ‐ countable noun: An ice rink is a level area of…
- Leavening ‐ a substance used to make baked goods rise by the…
- Kwacha ‐ the basic monetary unit of:; noun: a cupronickel…