web-extra-journey-to-a-vast-star-cityhttps://www.astronomy.com/observing/deep-sky-objects/page/35/Deep-Sky Objects | Page 35 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/2021/09/47Tuc.jpgInStockUSD1.001.00deep-sky-objectsstarsarticleASY2023-05-182014-05-2638296
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.