2 August, 2011. Combination of 20, 0.02 second images, using red, green and blue filters. SBIG ST-8XE CCD. 20" f/6.8 Dall-Kirkham cassegrain with a 2x barlow lens.
Io and its shadow are visible in this image.
2 August, 2011. Combination of 20, 0.02 second images, using red, green and blue filters. SBIG ST-8XE CCD. 20" f/6.8 Dall-Kirkham cassegrain with a 2x barlow lens.
