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NGC

American

Astronomy.

New General Catalogue: a catalog of clusters, nebulae, and galaxies compiled by Danish astronomer Johan Ludwig Dreyer (1852–1926) and published in 1888.

NGC British

abbreviation

New General Catalogue of Nebulae and Clusters of Stars; a catalogue in which over 8000 nebulae, galaxies, and clusters are listed numerically

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

By mapping how oxygen levels vary across NGC 1365 and comparing those observations with advanced simulations from the Illustris Project, the team reconstructed how the galaxy developed over 12 billion years.

From Science Daily • Mar. 23, 2026

M31-2014-DS1 initially stood out as an "oddball," De says, but it now seems to be one of several examples, including NGC 6946-BH1.

From Science Daily • Feb. 14, 2026

Astronomers assign catalog numbers like NGC 2264 to help identify and study deep space objects, especially those made of gas, dust, and young stars.

From Science Daily • Dec. 25, 2025

The second is that NGC 346 is taking more time to dissipate its protoplanetary disks because of radiation pressure being expelled from its stars.

From Salon • Dec. 21, 2024

Black holes ranging from millions to billions of times more massive than the Sun are suspected in the cores of giant elliptical galaxies such as NGC 6251 and M87.

From "Cosmos" by Carl Sagan

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023