the-jewel-box-cluster-ngc-4755-spiral-galaxy-m102-and-globular-cluster-palomar-5-2https://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/stardome330.gifInStockUSD1.001.00deep-sky-objectsgalaxiesarticleASY2023-05-182014-06-0547452
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.