Full size images are in JPEG . Technical Pan film developed in Technidol, photographed using six-inch refractor at prime focus with an orange filter. A smaller version is also available Sunspot photographed by Dean W. Armstrong. Effective focal length was 100m using extended eyepiece projection on six-inch refractor. Both photos image processed.
First photo is green channel only.
A wider angle shot shows the limb in relation to the group. Moon Mosaic Photos shot through 10-inch Cassegrain at Yerkes on Gold 200. Composited in Photoshop. By Matthew Vincenz. Image processed by John C. Crocker.