Stellarium Web
The sky from a browser — good for planning what is up tonight.
Observing aids
Planning tools. Live sky conditions sit on Observing nights so this page stays a short toolkit.
Tools we recommend
Heavens-Above
ISS passes and bright satellites for your location.
Clear Outside
Cloud, seeing, and darkness before you leave home.
Moon phase
Avoid faint deep-sky targets near full Moon unless that is the target.