Gordo
Any Planetarium program, such as Stellarium, Starry Night Pro, Carte Du Ceil etc will show almost any object you could possibly want. Just set the catalogue menus to show the magnitude limit required for galaxies, nebulae, stars etc and tick the box for labels to get the NGC or relevant catalogue number.
Even the "old fashioned" Star Atlas' such as Uranometria or Herald Bobroff will show objects down to 15th magnitude or more.
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