Caldwell 17, also known as NGC 147, is a dwarf elliptical galaxy in the constellation Cassiopeia, discovered by the British astronomer John Herschel in 1829. It is a satellite galaxy of the much larger Andromeda Galaxy and lies roughly 2.4 million light-years from Earth, forming a close visual and physical pair on the sky with the similar dwarf galaxy NGC 185, Caldwell 18.
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 17
Wikidata Q493581, class allow-list match (w-wdresolver-0926)View the Source NGC 147 (Wikipedia)
Caldwell 17, Wikipedia - lead section, catalogue classification
NGC 147 (also known as DDO3 or Caldwell 17) is a dwarf spheroidal galaxy about 2.58 Mly away in the constellation Cassiopeia.
NGC 147, Wikipedia - lead section, constellation
NGC 147 (also known as DDO3 or Caldwell 17) is a dwarf spheroidal galaxy about 2.58 Mly away in the constellation Cassiopeia.
- In Group: Dwarf Galaxies, infobox 'type' field: dSph/dE5 (NED classification, de Vaucouleurs system) filed under Dwarf Galaxies
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