Dorsum Heim is the ridge clearly visible in this picture, near the terminator. It is located in the western border of Mare Imbrium. C. Herschel is the name of the crater in the dead center of the ridge. The crater measures 13 km, while Dorsum Heim is 140 km long.
The image was taken through a 6-inch reflector with no tracking, on good seeing conditions. Afocally through a Barlow lens 2x and a 14 mm eyepiece. With a Casio Exilim point and shoot camera a small video was recorded and stacked using Registax. The noise was partially removed using Neat Image.
