Comet ISON
Taken by Michael Caligiuri on November 14, 2013 @
Backyard Observatory; Carlsbad, CA
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2013:11:16 08:34:00
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Details:
Imaged through a Takahashi FSQ 106 telescope and an SBIG ST-10XME. Field of view = 96 x 65 arc minutes. Exposures: Nine 5-minute exposures (45 min) while guiding on a star and four 5-minute exposures (20 min) while guiding on the comet head. Imaged through a red filter (to reduce sky glow). Processed by combining the two layers. When this image was taken, ISON was 95 million km from earth; estimated visual magnitude 6.3. The galaxy spotted in the upper left is NGC 4731, a 12th magnitude spiral galaxy in Virgo.
Photographer's website:
http://mcaligiuri.net
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