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North America Nebula, first attempt at a mosaic


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Just got around to making a mosaic with the Ekos planner and Pixinsight. This is a 2x2 mosaic with about 30 mins of luminance per panel. Stitched in Pix using platesolving and then co-ordinate based mosaic framing and mosaic blending. Then I colourised it in red using a layer mask in gimp so I could have red nebula and white stars.

Sadly I had an off-frame reflection in the lower two panels, but I don't know what from. I have a big lens hood over the front of my scope now so I don't know what exactly caused it, but i experienced something similar in another image I made of the horsehead, so I don't think its a terrestrial source, maybe a bright star somewhere?

I'm quite pleased with the result! Sadly it took me a long time to work out how mosaics should be done in pix, but every day is a learning day after all?

If only milky way season had longer nights for us up in the north! I would love to do core mosaics when its at its highest in the summer.


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