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Friday, November 23, 2018

Deep photo of the North America & Pelican Nebula area


While shooting lights for my Giant Cosmic Squid project, I had to wait few hours every night to the Ou4 to be well placed in the sky. I spent those hours to shoot some frames for North America and Pelican Nebula area. I have shot many details from this area , while making my poster about Treasures of the Swan I noticed that there are many overlapping photos. I shot few missing parts and finally I was able to build a mosaic image from that material.

16-panels are now combined seamlessly to a very high resolution image. Each frame is shot three times, one exposure set for the light emitted by an ionized hydrogen (H-alpha), second set for the light emitted by an ionized sulfur (S-II) and third set for the ionized oxygen. (O-III) Total exposure time used for this image combo is just under 200h! The original resolution is around 16.000 x 16.000 pixels. Frames for this mosaic image are taken between 2014-2018 and  I have published them as an
individual compositions.


The Grande Mosaic of the North America and Pelican Nebula
Please, click the image to see a large version, it's worth it! (2000x2000 pixels)


A 16-panel mosaic image of the NA & Pelican Nebulae. Mapped colours from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen. All photos are shot with a Celestron EDGE 11" reflecting telescope, Apogee Alta U16,a cooled astrocam and the Astrodon narrowband filter set. Photos are shot between the years 2014 and 2018, total exposure time is around 200h.



Details from the image above
Please, click the image to see a large version












Nebula in light from an ionized hydrogen lone (H-alpha)
Please, click the image to see a large version




Orientation
Please, click the image to see a large version

The area of 16-panel mosaic is marked with a white rectangle to this older shot of the area.
Older photo is taken at 2012 with a Tokina AT 300 f2.8 camera lens, QHY9 astrocam and the Baader narrowband filter set.



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