Theophilus / Cyrillus Area


A wide angle view captured from video of the area surrounding the craters Theophilus, Cyrillus and Catharina. The CCD camera module was placed at prime focus. The moon phase was just prior to first quarter.
This image was captured with the CCD video module in an eyepiece projection mode. A 26mm eyepiece was used with a 3x barlow and with the CCD approximately 1.5 - 2.0 inches from the eyepiece.
An electronic enlargement of one of the video images of Theophilus. This image shows the central peak. There is a feature that resembles a crater at the peak of the central mountain complex. Since this feature is near the limit of resolution in the image, it is likely an artifact of atmospheric turbulence or image processing.
A further processed image of the central mountain complex using a simple image-averaging technique to reduce the video noise. 8 individual frames were captured from video and averaged to form the composite to the left.
An image of the Theophilus area with the moon phase just prior to first quarter. The image was constructed from 100 video frames captured on December 28, 2003 using a Panasonic camcorder and 10-inch Newtonian. Approximately 1800 frames were captured and sorted using HandyAvi. The 300 best frames were then processed using Registax and the best 100 of that group used for the final image. Registax was used to sharpen and tone adjust. Final cropping, resizing and minor tone adjustment was done with Ulead Image Editor.
This image was generated using the same technique as above, but processed in color.
A view of Theophilus taken on another occasion. This is a composite of three images converted to digital format from an analog video tape recording. The three frames were averaged to reduce noise in the image resulting from the video capture process and to reduce the effects of atmospheric turbulence. A 26 mm focal length eyepiece was used with a 3x Barlow lens to project an image on a CCD camera module. The original video recording was made on the Outer Banks of North Carolina on May 2, 1998.