Caldwell 23, also known as NGC 891, is a spiral galaxy in the constellation Andromeda seen almost exactly edge-on, discovered by William Herschel in 1784. It lies roughly 30 million light-years from Earth and is bisected by a prominent, dark dust lane running the length of its disk, often compared in structure and size to the Milky Way.
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 23
Wikidata Q490345, class allow-list match (w-wdresolver-0926)View the Source NGC 891 (Wikipedia)
Caldwell 23, Wikipedia - lead section, catalogue classification
NGC 891 is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda.
NGC 891, Wikipedia - lead section, constellation
NGC 891 is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda.
- In Group: Spiral Galaxies, infobox 'type' field: SA(s)b? (NED classification, de Vaucouleurs system) filed under Spiral Galaxies
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