Caldwell 22, also known as the Blue Snowball Nebula or NGC 7662, is a planetary nebula in the constellation Andromeda, discovered by William Herschel in 1784. It lies roughly 5,000 to 6,000 light-years from Earth and appears as a small, round, distinctly blue-green disk in a telescope, the source of its popular nickname.
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 22
Wikidata Q613521, class allow-list match (w-wdresolver-0926)View the Source NGC 7662 (Wikipedia)
Caldwell 22, Wikipedia - lead section, catalogue classification
NGC 7662 is a planetary nebula located in the northern constellation Andromeda.
NGC 7662, Wikipedia - lead section, constellation
NGC 7662 is a planetary nebula located in the northern constellation Andromeda.
View the SourceNGC 6543 (Wikipedia)
In Group: Planetary Nebulae, Lead sentenceQuote, In Group: Planetary Nebulae, Lead sentence
The Cat's Eye Nebula (also known as NGC 6543 and Caldwell 6) is a planetary nebula in the northern constellation of Draco, discovered by William Herschel on February 15, 1786.
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