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Showing posts from December, 2022

December Nebulae - fighting star halos

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The Horsehead Nebula is almost a mandatory mandatory object to capture with every new optics. I was eager to see how the Hyperstar world do with it. Unfortunately weather and moon were not quite supportive of this plan. As even thin clouds lead to huge halos around the bright star(s) I had to discard quite a number of frames. Luckily over Christmas it was possible to collect a decent amount of data in reasonable quality. IC434 the Horsehead Nebula 152x60sec, C9 Hyperstar, ASI294Pro IC443 the Jellyfish Nebula is quite a beautiful object. However, the original frame I chose contained two relatively bright stars and the Optolong filter is creating a gigantic halo around them - one was even able to the cabling of the Hyperstar within the halo. My PixInsight craftsmanship proved insufficient to fully fix that, so I tried to tame one of the halos and cropped the image to remove the 2nd one. IC443 Jellyfish Nebula 117x120sec, C9 Hyperstar, Optolog L-eXtreme, ASI294Pro Shot at the same nights