その他惑星 月惑星研究会 関西支部
Lunar occultation o Image 2007/03/02(UT)
David Arditti (250mm Dall-Kirkham Cassegrain)|
I have finally done something with my webcam images of the occultation of the 2nd.
I have made them into two short animations, one showing the ingress phase
02:28-02:45, and one showing the egress phase 02:54-02:59. These animations are
approximately centred on Saturn (to within the tracking accuracy of the mount
going at siderial rate), so the Moon appears to move.
I have left these videos "natural" and minimally-processed. Exposure is for
Saturn with no attempt to hide the consequent over-exposure of the Moon. This is
what was really seen on the screen. There is some loss of quality in the
conversion to GIF animations. There are also some twigs visible in the
foreground as the scene was going behind a tree.
Each frame is a stack of 100 frames (10 second AVI files), taken with a standard
Toucam Pro through a 10" Dall-Kirkham-Dall Cassegrain at approx. f15.
(These are the first publicly-released images from this telescope following its
[David Arditti: Edgware Middlesex HA8 5LW: United Kingdom]