globular-clusters-m55-and-m71-the-little-gem-and-the-blinking-planetaryhttps://www.astronomy.com/observing/deep-sky-objects/page/46/Deep-Sky Objects | Page 46 of 50 | 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/Cygnus-2.jpgInStockUSD1.001.00deep-sky-objectsobservingarticleASY2023-05-182012-08-2341347
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.