the-great-square-of-pegasus-globular-cluster-m15-and-stephans-quintethttps://www.astronomy.com/observing/deep-sky-objects/page/25/Deep-Sky Objects | Page 25 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.gifInStockUSD1.001.00astronomy-for-beginnersdeep-sky-objectsgalaxiesarticleASY2023-05-182015-10-0142119
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.