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Click on the following links to see the animated images of the asteroids. The images are large (~2 MB). You may need to wait a few seconds for the images to fully load. The astroid animation will loop so that you can see the asteroid's movement across the sky. "41 Daphne". These images were taken on Tuesday April 15, 2008. The May 2008 Sky & Telescope magazine had an article entitled "Springtime Asteroids " by Alan MacRobert. After reading the article, I thought it would be interesting to make an animated image of the two asteroids. I was also interested in trying out my recently purchased Mountain Instruments MI-250 mount along with CCD Commander image automation software. I set up CCD commander to automate the sequence of imaging both of the asteroids. First the mount slewed to 5 Astraea and took 3 1-minute exposures of the asteroid. Next the mount slewed to 41 Daphne and took 3 1-minute exposures. I built a 5 minute delay into the CCD Commander to script before the sequence was repeated. In all, 6 sets of exposures were made on each asteroid.
The following chart was photocopied from the May 2008
Sky & Telescope magazine on page 70.
The photo was part of the article entitled "Springtime Asteroids" by Alan MacRobert.
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