Popular Astronomy

Join the SPA Now

Moon Today

The phase of the moon for today. Updates every 4 hours
Courtesy U.S.N.O.

Sky Tonight

See how the sky will look tonight with our Sky Chart

Popular Astronomy

Popular Astronomy Magazine - January-February 2018
See what's in the January-February 2018 edition of 'Popular Astronomy' magazine. Click the cover to find out.

Follow popastro on Facebook 

Follow popastro on Twitter 

Help with online joining

If you find that the link to our membermojo joining system doesn't work, it's probably because you are using an outdated version of your browser, most likely on Windows XP. In that case, please copy the link and paste it into a different browser.

The link is

If all else fails, please use our old joining page, which you can find at the following link:



Tue, 16 Jan 2018   - Coming soon! Our new website

Fri, 05 Jan 2018   - Early morning spectacular

Sun, 31 Dec 2017   - Did you see the fireball on 31 December?