NGC 89
Galaxy in the constellation Phoenix
NGC 89 is an unbarred spiral galaxy located approximately 150 million light-years away in the southern constellation of Phoenix. It was discovered on September 30, 1834, by the English astronomer John Herschel.
01Physical characteristics
NGC 87 is classified morphologically as a barred or intermediate spiral galaxy with peculiar features induced by tidal perturbation. At its distance of 150 million light-years, its angular diameter corresponds to a physical size of roughly 50,000 light-years across.
The galaxy features an active galactic nucleus (AGN) classified as a Seyfert 2 nucleus. High-resolution imaging reveals a prominent dust lane crossing the central region and asymmetric spiral arms displaying star-forming regions triggered by interaction with its neighbors.
02Group membership
NGC 89 is a member of Robert's Quartet, a compact galaxy group located in Phoenix that also includes NGC 87, NGC 88, and NGC 92. The four member galaxies reside within a region spanning roughly 150,000 light-years across and exhibit active gravitational interactions.
Sources and credits
This article is adapted from the Wikipedia article “NGC 89”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- NGC 89.jpg by ESO, CC BY 4.0
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