Developer workshop

Observing aids

Helpful tools for planning a session. Beginners: start with the Moon, Jupiter’s moons, and the Pleiades.

Moon phase

Last Quarter

Subscribe to lunar calendar

Sky conditions

This widget needs the society observing location. Officers set latitude and longitude under Admin → Society details.

Aurora forecast

This widget needs the society observing location. Officers set latitude and longitude under Admin → Society details.

Tools we recommend

Stellarium Web

The sky from a browser — good for planning what is up tonight.

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.

Live feeds

ISS passes

Set the observing pin under Society details for ISS passes.

Planet visibility

Set the observing pin under Society details for planet visibility.

Aurora forecast

This widget needs the society observing location. Officers set latitude and longitude under Admin → Society details.