Astronomy Cocoon Nebula: IC5146 Lagoon Nebula: M8 M16 Eagle Nebula M20 Trifid Nebula M4 M63: Sunflower Galaxy M13 Messier 39 Ring Nebula: M57 Eta Aquarids Meteor Shower May 5, 2022 Sombrero Galaxy M104 M102: Spindle Galaxy NGC 3242: Ghost of Jupiter M101 Pinwheel Galaxy The Backyard Astronomer's Guide by Terence Dickinson and Alan Dyer M45 WitchHead Nebula Orion-Nebula Flaming-Star-Nebula California Nebula Orion Constellation Andromeda Galaxy North America Nebula