the-triangulum-galaxyhttps://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/ASYPH1217_02.jpgInStockUSD1.001.00deep-sky-objectsobservingarticleASY2023-05-182017-12-0435927
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.