two-open-clusters-in-perseus-emission-nebula-ngc-1491-and-barred-spiral-galaxy-ngc-1512https://www.astronomy.com/observing/deep-sky-objects/page/24/Deep-Sky Objects | Page 24 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/Perseus-2.jpgInStockUSD1.001.00deep-sky-objectsgalaxiesarticleASY2023-05-182015-12-0338248
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.