C/2006 W3 (Christensen) on 2009 Aug 21

 

Time 2009/08/21 18:02 UTC - 18:08 UTC
Place φ = 23°09'12".24 N, λ = 113°18'53".99 E, +18m, Guangzhou, China
Optics Canon EF 70-200mm f/2.8 L USM set to 200mm, f/2.8
Camera Canon EOS 350D (ISO 800)
Exposure 2.5 s x 54 frames
Processing 54 images stacked in DeepSkyStacker 3.2.2 with dark frames subtracted and flatfiled frames divided; fixed with Fitswork 3.93 and Photoshop CS3 Extended to remove the star-trails; 0.5x reduced and cropped;
Comments city light pollution; haze; comet pointed;

 

 

Processing 54 images stacked in DeepSkyStacker 3.2.2 with dark frames subtracted and flatfiled frames divided; fixed with Fitswork 3.93 and Photoshop CS3 Extended to remove the star-trails; 0.5x reduced and cropped; details enhanced in different weights with Fitswork 3.93;

 

 

 

Copyright © Man-To Hui (Wentao Xu)

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