Comet 2/P Encke amimation

Images taken: Nov. 19, 2003

Author: Kristen Harrison

Telescope: Meade 12 in with f/4 focal reducer (f=48in)

Size of the images: 15'x20'

Camera: SBIG ST-7 CCD

Visual brightness : V=8 mg

Size of the comet: 1' (bright part), 3' (faint part)

Surface brightness of the comet: 17.5 mg/as^2 (bright part), 19.5 mg/as^2 (faint part)

Transparency: T=+0.67 mg

Background: c=17.8 mg/as^2

Exposure: 15 sec, low resolution (3x3 binning), 20 frames at 6:35:45 pm CST.

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Exposure: 15 sec, low resolution (3x3 binning), 20 frames at 7:01:32 pm CST.

A movie made of the same images.

Sets of 5 images were combined into one frame.

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For comparision, an animation taken by Randy Brewer in California

with his 6 in Takahashi refractor and ST-10XME camera

(15 one minute exposures from a dark location):

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An old movie from Oct. 22 (taken by Christian Snider):

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