Nebulae Pelican Nebula Previous Next Enlarge to Full Size Date: 8/5/2006 July. 23/2005 to Aug. 5/2005 Toronto, Canada This is a 2 panel mosaic of the Pelican nebula taken over a three week period on multiple imaging sessions. The mosaic seam is halfway down the frame bisecting the Pelican's beak - but hopefully you can detect that it's there. Televue 76 at f6.3 SBIG ST8i All unbinned. Ha: 7.5 hours Red: 2 hours Green: 2 hours Blue: 4 hours By far this has been the toughest technically to complete. Having to deal with severe gradients that were very different from night to night, some subs were shot on opposite sides of the meridian and then having to stitch each wavelength separately, flatten, then combine them all was more than I had bargained for. I can't tally the number of hours spent in processing, but I can assure you it's some integer multiple of the time spent collecting the photons. The image was processed with MaxIm DL, PixInsight LE and Photoshop CSII. The mosaic was stitched together using MaxIm DL's mosaic feature. Once each colour channel was assembled, I exported them into PixInsight LE to remove gradients using the DBE tool - especially for the RGB channels. Then the final assembly and processing was done using Photoshop CSII. Feel free to rotate it 90degrees ccw to change the orientation. I present it in landscape mode just so that it can be easily viewed at a higher resolution on a computer monitor.

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