emission nebula
Word Rarity
Rare
Frequency: Zipf frequency 3.10 in modern English
18
Scrabble Score
14
Letters
4
Syllables
10
Unique Chars
Meaning
noun
A nebula composed of ionized gases which produce visible light (as distinct from a reflection nebula, which reflects the light produced by neighboring stars).
Example Sentences
- "The Orion nebula is an emission nebula—it glows with its own light."
- "Kitt Peak National Observatory, in Arizona, 56 miles southwest of Tucson, offers a rare opportunity to spend an entire night looking through powerful telescopes at galaxies, planetary emission nebulae and star clusters."