P430 ORACLE 430 Sat29 Jul C4 2201:10 4-Tel     EARTH CALLING BASINGSTOKE  7.00pm, SUNDAY, JULY 30 Equinox, C4's highly acclaimed science and technology series continues its run with an off beat look at the world of amateur astronomy. Retired naval commanders and butchers alike have a passion for the heavens. With their own Heath Robinson equipment and a generous dose of enthusiasm they scan the skies. What is the appeal? Why are they so obsessive? And what is the cost?  For booklet details see 456  More on heavenly bodies on 443 Next Preview Features Facts C4 Daily