the-coathanger-globular-cluster-m22-and-the-phantom-streak-ngc-6741https://www.astronomy.com/observing/deep-sky-objects/page/40/Deep-Sky Objects | Page 40 of 48 | Astronomy.comDeep-sky objects are celestial objects that exist outside our solar system. Three major types of deep-sky objects are nebulae, star clusters, and galaxies.https://www.astronomy.com/wp-content/uploads/sites/2/2021/09/stardome330.gif?fit=330%2C113InStockUSD1.001.00deep-sky-objectsarticleASY2023-05-182013-07-1142068
Deep-sky objects are celestial objects that exist outside our solar system. Three major types of deep-sky objects are nebulae, star clusters, and galaxies.