Paramount
04-07-2010, 12:30 AM
Hi
Here is part 2 of my 3 part project on IC1396. I managed to get 9x20 minutes OIII last night in between the clouds, I had to stop the imaging run twice during the night because of thick cloud coming in. I combined it with the 12x20 minutes of Ha that I got last week, I didn't use the earlier 10 sub frames of Ha as there would have been considerable cropping on the sides of the image. As mentioned before this is the first image where I have used flat field frames and I have taken my flats at approximately 80% full well capacity with matching dark frames. Again the processing was fairly simple for this image in that after calibration and stacking I colour combined in Maxim DL with 20% Ha added to 100% OIII to make the blue channel, this was then gamma stretched and converted to 16 bit tiff and transferred to Photoshop. The only processing there was levels and curves with a few iterations of contrast curve adjustments and some colour balancing. No noise reduction was used. Minor cropping was used to remove stacking effects from dithering. Equipment as before is my favourite set up of Takahashi FSQ106ED at f5, Starlight Xpress SXVF H36, Paramount ME, Astrodon 5nm NB filters, FLI PDF focuser and filter wheel, SX Lodestar and OAG for auto guiding
The Ha version can be seen in an earlier thread here or on the Nebulae 2 page of the image gallery on my website http://www.imagingtheheavens.co.uk (http://www.imagingtheheavens.co.uk/)
For those with the patience here is a link to the full resolution download
http://www.pbase.com/imaging_the_heavens/image/126177958
I am now hoping for some more clear weather (tonight, fingers crossed) to add the SII data
Thanks for looking
Best wishes
Gordon
http://www.imagingtheheavens.co.uk/userimages/ic1396rg1000.jpg
Here is part 2 of my 3 part project on IC1396. I managed to get 9x20 minutes OIII last night in between the clouds, I had to stop the imaging run twice during the night because of thick cloud coming in. I combined it with the 12x20 minutes of Ha that I got last week, I didn't use the earlier 10 sub frames of Ha as there would have been considerable cropping on the sides of the image. As mentioned before this is the first image where I have used flat field frames and I have taken my flats at approximately 80% full well capacity with matching dark frames. Again the processing was fairly simple for this image in that after calibration and stacking I colour combined in Maxim DL with 20% Ha added to 100% OIII to make the blue channel, this was then gamma stretched and converted to 16 bit tiff and transferred to Photoshop. The only processing there was levels and curves with a few iterations of contrast curve adjustments and some colour balancing. No noise reduction was used. Minor cropping was used to remove stacking effects from dithering. Equipment as before is my favourite set up of Takahashi FSQ106ED at f5, Starlight Xpress SXVF H36, Paramount ME, Astrodon 5nm NB filters, FLI PDF focuser and filter wheel, SX Lodestar and OAG for auto guiding
The Ha version can be seen in an earlier thread here or on the Nebulae 2 page of the image gallery on my website http://www.imagingtheheavens.co.uk (http://www.imagingtheheavens.co.uk/)
For those with the patience here is a link to the full resolution download
http://www.pbase.com/imaging_the_heavens/image/126177958
I am now hoping for some more clear weather (tonight, fingers crossed) to add the SII data
Thanks for looking
Best wishes
Gordon
http://www.imagingtheheavens.co.uk/userimages/ic1396rg1000.jpg