CzSkY lists

Vic's Asterisms Vic list of remarkable asterism
MiniMister's Dark Nebulae Nebulae from Barnard's Catalog by MiniMister
David1 double stars Double star sketches made by David1.

Classic list

Caldwell catalogue Catalog of 109 star clusters, nebulae, and galaxies
Herschel 400 Catalog Selection of bright objects from NGC catalog
Deep Man 600 Deep Man 600
Messier Marathon Challenge to observe all 110 objects in the Messier Catalog in one night.
The Herschel 500 Double Stars Selection from the five William Herschel (1738-1822) catalogs

Categorized Lists

Planetary nebula from Abell Catalog Project "Planetary nebula from Abell Catalog" created by U. Glahn
Planetary nebulae of the Nothern Hemisphere Project Planetary nebulae created by U. Glahn
Palomar globular star clusters Project "Palomar globular star clusters" created by U. Glahn
Hickson Compact Group Hickson Compact Group
Carbon stars Adapted Stephenson catalogue (1989) of Cool Galactic Carbon Stars

Exotic lists

Catalog of superthin galaxies Catalog of superthin galaxies from U. Glahn
Galaxies from the Holmberg catalog Project "Galaxies from Holmerg catalog" created by U. Glahn
Rosse Spirals Project "Rosse's Spirals" created by U. Glahn
Galaxies from the Local group Project "Galaxies from the Local group" created by U. Glahn
Chasing Billion Year Old Light Chasing Billion Year Old Light by Jimi Lowrey