SkyPlanner

SkyPlanner can help you organize your star gazing sessions . You can browse various catalogues, like the famousMessier, NGC/IC, and also Arp, Abell, red stars, asterisms; create your own printable session plan, add your notes, get a preview of the selected celestial objects, suggestions customized on your instruments, and many other features. You can register immediatly, without needing to fill an email address, creating a personal profile with your data and star gazing sessions.

Screenshots from Chrome Web Store