deep-sky-tour-challenges-for-summerhttps://www.astronomy.com/observing/deep-sky-objects/page/49/Deep-Sky Objects | Page 49 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/m4_ab_500.jpgInStockUSD1.001.00deep-sky-objectsobservingarticleASY2023-05-182005-05-2439729
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.