101-must-see-cosmic-objects-the-ring-nebulahttps://www.astronomy.com/observing/deep-sky-objects/page/7/Deep-Sky Objects | Page 7 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/2023/02/RingNebula.jpgInStockUSD1.001.00deep-sky-objectsobservingarticleASY2023-09-112022-10-24113913
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.