open-cluster-m41-the-tau-canis-majoris-cluster-and-thors-helmethttps://www.astronomy.com/observing/deep-sky-objects/page/3/Deep-Sky Objects | Page 3 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/Canis-Major-2.jpgInStockUSD1.001.00deep-sky-objectsobservingarticleASY2024-02-142024-02-1438275
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.