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The Great Rift - Narrowband |
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Click here to enlarge photograph.
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DESCRIPTION The above image is a closer view of the 'Gulf' region of the North American Nebula. The image was recorded with a filters designed to transmit light emitted by hydrogen, sulpher and oxygen atoms. Constellation: Cygnus - Distance: 1,600 Light years RA: 20.59 35 - DEC: +43.38.18 - Magnitude: n/a - Apparent Size: 56' x 38' |
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| Date Taken: 07.30.2004 Telescope: Intes MK69 6" f/6 MakCass Focuser: Finger Lakes DF-2 Camera: SBIG ST10XME / CFW-8A Mount: Astro Physics AP900GTO Guider: Borg 76ED F6.6 and ST7XME Filter Set: Custom Scientific Ha (4.5nm AR), SII (4.5nm AR), OIII (4.5nm AR). |
Ha: 6 x 600 sec 1x1 SII: 24 x 600 sec 1x1 OIII: 24 x 600 sec 1x1 Total Exposure Time: 540 minutes (9.0 Hours) Data aquired unattended with CCDAutoPilot using 2.5 pixel dithering and automatic focus routines between exposures. Calibration, registration and image combine in Mira Pro 7. Debloomed with Ron Wodaski's DeBloomer Plugin for Maxim DL. Each channel deconvolved using 2 passes of CCD Sharp and then DDP stretched in Maxim DL 4. Channels color combined in Maxim DL 4. Ha (Green), SII (Red), OIII (Blue). Historgram adjustments and iterative sharpending using Photoshop CS. |
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