About this Image |
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The ringed planet Saturn passed opposition at February 11 this year.
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Optics |
16" cassegrain in secondary focus at f/18 |
Mount | MK-100 GEM |
Camera | Firewire Imaging Source DMK21BF04, Atik filter wheel |
Filters | Astronomik 1,25" IR-pass 705nm, R, G, B |
Date | Mar 17, 2007 |
Location | Wildon/Austria |
Sky Conditions | mag 5.5 sky, good seeing;, temperature 5 C |
Exposure | 1/15 sec, 15 fps, approx 3000 frames for IR, 2000 frames each for RGB |
Processing | Image aquisition in IC-Capture, further processing in Registax 4, selection rate approx. 40%, color combine, IR+R used as luminance, color balancing, curves, unsharp mask in Photoshop CS2; |