Just realised it's a new day, so here's my latest DSO image:
The Horsehead Nebula and Flame Nebula
Probably one of my favourite parts of space, The Horsehead Nebula lies in the constellation Orion, which is quite a busy part of the sky with lots to see. I've always wanted to photograph this Nebula as I find it absolutely jaw-dropping but up until this week, I lacked the equipment. I finally got a Fuji XF100-400, so it works out as a 600mm in FF terms, therefore giving me just enough reach for a shot like this. I attached my X-T3 and the lens to my EQ5 mount and went for unguided 25s exposures. I wanted 200, but only got 70ish due to atmospheric haze and then cloud that came in. The haze has caused Alnitak, the bright star in the image to have a glow around it, as well as others. Ideally, I'd like to grab at least 1min unguided exposures and look to have the setup auto guided in future, to allow for hopefully 3-5 minute exposures, as I'll can then drop the ISO a bit for clearer results and get more signal for more detail (a lot of red nebula isn't visible in my shot - but it is there). I'll also go to my nearest Dark Sky Park that is only a short drive away, to make use of better sky quality. I'll probably reshoot this, zoomed in more on the Horsehead nebula, with the camera attached to my telescope instead.
Anyway, for this image, the shots were: 74 Light frames shot at 25s / f5.6 / ISO 1600, 30 Dark frames, 30 Flat frames, 30 Bias frames. Calibrated, integrated and processed in AstroPixelProcessor for macOS. Finished in Adobe Lightroom and Photoshop.
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