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Your name Your email What is it about? Message Email me occasionally when there is something worth looking up at

Before you write

A few things that come up often:

Positions look slightly off. The map and sky pages are accurate to about a degree, which is fine for finding a planet but not for precision work.
Can I use the images? The planet photographs come from NASA and are public domain. Credit the listed source and you are free to use them.
Can I use this with a class? Yes, and no permission needed. The comparison tool and events calendar tend to work well on a whiteboard.
Why is Pluto not a planet? There is a whole post about that.

The Solar SystemA field guide for British skies

Everything you need to find your way around our corner of space, written for people looking up from Britain and Ireland. Switch on Night vision at the top of any page before you head outside.

Explore

The planets
Compare worlds
Events calendar
Trivia and quiz
Photo gallery
Contact

From Britain

Tonight from Britain
The Solar System on Britain
Dark sky places
British astronomy

Planet positions are computed in your browser from JPL orbital elements. Figures from NASA fact sheets. Space photographs courtesy of NASA and in the public domain; heritage images from Wikimedia Commons under the licences shown beside them. Map data from Natural Earth.