a-pair-of-double-stars-globular-cluster-ngc-6934-and-the-cheeseburger-nebula-ngc-7026https://www.astronomy.com/observing/deep-sky-objects/page/26/Deep-Sky Objects | Page 26 of 49 | 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/uploads/2021/09/stardome330.gifInStockUSD1.001.00deep-sky-objectsstarsarticleASY2023-05-182015-08-2738423
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.