DictionarycelestialSky and outer space
adjective

celestial

suh-LES-chul/səˈlestʃl/

Belonging to the sky or heavens.

The moon, ringed planet, and distant stars are celestial bodies.

A compact astronomical vignette of a cratered moon, a ringed planet, and distant stars makes the outer-space branch of the selected meaning immediately visible.
Etymology

Latin caelestis described what belonged to the sky or heaven, covering both the visible heavens and the divine realm. That breadth survives in English uses for astronomical objects as well as heavenly beings.

In context

The Physics & Cosmos Academy7:16
An eclipse is a moment of perfect alignment in space. It occurs when one celestial body moves into the shadow of another.
Eclipses: The Cosmic Dance of Shadow and Light | Solar and Lunar Eclipse | Space Documentary 2025

More examples

  • Ancient sailors used celestial navigation.
  • The painting surrounds the angel with celestial light.
  • The chart shows the positions of several celestial bodies.

Similar words

astronomical
Specifically concerns objects and phenomena studied in astronomy.
heavenly
More often suggests divine nature or exceptional beauty.