Astronomy

Astronomical Telescope Eyepieces: A Discussion for the Beginner

http://dougroberts.co.uk/astronomy/webcam-astrophotography

http://www.astro.shoregalaxy.com/webcam_astro.htm

http://www.webcam-astrophotography.com/

http://www.heavens-above.com/

http://www.acecameras.co.uk/content/images/magnification copy.pdf

http://www.cloudynights.com/

The Sky at Night magazine

http://dougroberts.co.uk: Webcam astrophotography