101-must-see-cosmic-objects-ngc-7331https://www.astronomy.com/observing/deep-sky-objects/page/14/Deep-Sky Objects | Page 14 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/2023/03/7NGC7331.jpgInStockUSD1.001.00deep-sky-objectsobservingarticleASY2023-08-242022-03-21116317
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.