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 - Mar-Apr 2014
See what's in the Mar-Apr 2014 edition of 'Popular Astronomy' magazine. Click the cover to find out.

Follow popastro on Twitter 

Solar activity

AR 1504, photographed by Alan Clitherow
on 14 June

Richard Bailey, Solar Section Director, reports that a large collection of sunspots, active region AR1504, near the lower centre of the Sun, is very active and may produce flares in the coming days. 

Project an image of the Sun onto a shaded white screen to see the sunspots. Observers with specialised h-alpha filter systems should watch for flares, plaging and filaments (prominences seen against the Sun's disc). NEVER look directly at the Sun with the naked eyes.

 

 

Thu, 17 Apr 2014   - Historic encounter for Vesta and Ceres

Sun, 06 Apr 2014   - Mars comes close

Fri, 14 Mar 2014   - Jupiter rides high tonight