File:Positional_astronomy.svg · Wikimedia Commons · See Wikimedia Commons
elongation
Sign in to savein astronomy, angular separation between the Sun and a planet, with the Earth as a reference point
Wikidata facts
- Subclass of
- angular measure
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- Commons category
- Elongation (astronomy)
- described by source
- Encyclopædia Britannica 11th edition
Sources (3)
via Wikidata · CC0
~7 min read
Encyclopedic overview
This diagram shows various possible elongations (ε), each of which is the angular distance between a planet and the Sun from Earth's perspective.
In astronomy, a planet's elongation is the angular separation between the Sun and the planet, with Earth as the reference point.
Excerpted from Wikipedia’s “elongation” article, available under the CC BY-SA 4.0 licence.