Caldwell 2, also known as the Bow-Tie Nebula or NGC 40, is a planetary nebula in the constellation Cepheus, discovered by the German-British astronomer William Herschel in 1788. It formed from the outer layers of a dying star shed into space, and its central star is an unusually hot remnant of Wolf-Rayet type, one of the hottest stellar cores known in a planetary nebula.
Facts
Classification
Constellation CatalogueNew General Catalogue (NGC) 1 Discovery Year In the Other Atlases
In Constellation
Also in Divinity Atlas: the constellation this subject lies in.
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia Foundation
2. Wikidata: Caldwell 2
NGC 40 (Wikipedia)
Caldwell 2, Wikipedia - lead section, catalogue classification
NGC 40, also known as the Bow-Tie Nebula or Caldwell 2, is a planetary nebula located around 5280 light years (1619 parsecs) from Earth in the Constellation of Cepheus.
NGC 40, Wikipedia - lead section, constellation
NGC 40, also known as the Bow-Tie Nebula or Caldwell 2, is a planetary nebula located around 5280 light years (1619 parsecs) from Earth in the Constellation of Cepheus.
View the SourceCaldwell 2 (Wikipedia)
In Group: Planetary Nebulae, Lead sentenceQuote, In Group: Planetary Nebulae, Lead sentence
NGC 40, also known as the Bow-Tie Nebula or Caldwell 2, is a planetary nebula located around 5280 light years (1619 parsecs) from Earth in the Constellation of Cepheus.
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