the-leo-trio-plus-onehttps://www.astronomy.com/observing/deep-sky-objects/page/20/Deep-Sky Objects | Page 20 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/Harrington.jpgInStockUSD1.001.00deep-sky-objectsobservingarticleASY2023-10-192018-03-2947196
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.