deep-sky
English
Etymology
A modern term used primarily by amateur astronomers.
Adjective
deep-sky (not comparable)
- (astronomy) Existing outside of the Solar System; relating to that which exists outside of the Solar System.
Translations
object in the night sky other than a solar system object, single star or multiple star system
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Usage notes
- Deep-sky is not used in reference to stellar objects such as individual stars or binary stars, but it may include large clusters of stars.
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