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ASTRO: NGC 7635 in colour
I did a Halpha image of NGC 7635 last year and added some RGB this year. I
had to do a 50/50 mix of the red channel and Halpha, otherwise the image would look washed out with a pink hydrogen nebula. Taken from the middle of Berlin, luminance with a C8 at f/7, G11 mount, SXV-H9 camera, 36x10 minutes through an Astronomik 13nm Halpha filter, RGB 6x5 minutes each with an 8" LX200 at f/4.4, SXV-H9 camera. The image can also be found at http://ccd-astronomy.de/temp/7635colourgut.jpg Halpha: http://www.slilge.de/Sharpless/7635-36x10gut.jpg RGB: http://ccd-astronomy.de/temp/7635RGBgut.jpg Stefan |
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