M 13
Globular Cluster in Hercules
Optics: Celstron 8, f =2030 mm
Mount: Vixen Great Polaris
Camera: Minolta SRT 101
Film: Kodak Elitechrome 200 push to ISO 640
Exposure: 40 Minutes
Guiding: Manually guided with Celestron Radial Guider and reticle eyepiece f = 12.5 mm
Date: 25. July 2001, 21:50 UT
Location: Gütersloh-Friedrichsdorf; Germany
Photographed by: Michael Wenge