explore-the-skys-summer-triangle-this-week-in-astronomy-with-dave-eicherhttps://www.astronomy.com/observing/deep-sky-objects/page/3/Deep-Sky Objects | Page 3 of 47 | 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/wp-content/uploads/sites/2/2023/06/SummerTriangle.jpeg?fit=1568%2C1047InStockUSD1.001.00deep-sky-objectsobservingobserving-basicsarticleASY2023-06-052023-06-05128865
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.