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For example: {{NGC objects:1-499}} displays links from NGC 1 to NGC 499 ... Template:NGC objects/doc}} This page was last edited on 19 January 2024, at ...
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The New General Catalogue of Nebulae and Clusters of Stars (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and emission nebulae.
Electrochemical machining (ECM) is a method of removing metal by an electrochemical process. It is normally used for mass production and for working extremely hard materials , or materials that are difficult to machine using conventional methods. [ 1 ]
NGC 1 and NGC 2 as an optical double. At an estimated 140,000 light-years in diameter, [4] NGC 1 is roughly the same size as our galaxy, the Milky Way, which is believed to be approximately 160,000 light-years across. [6]