ELECTRONIC	h   t   t   p   c o l o n   s l a s h   s l a s h   w   w   w dot p h y s i c s dot u o g u e l p h dot c   a   s l a s h   o b s e r v a t o r y dot p h p g e n e r a l	http://www.physics.uoguelph.ca/observatory.phpgeneral	1