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I've been beavering away on a couple of images, one of the Pacman nebula and this, my first Horsehead.
Shot over several nights in my back garden. Terrible weather meant a big gap between imaging nights - it's amazing how you (or is it just me?!) forget the little details in just 8 or 9 days...
Lum data is lacking a bit and I couldn't tame mighty Alnitak. But I like the result.
Anyway, a number of firsts here - first completed image with the Lakeside focuser, first true tests of APT's recently added auto meridian flip (works great!) and first time using Astro Pixel Processor for calibration and stacking. APP is a contender - very easy to use - I threw all my multinight multifilter data at it and it chugged through it all with the minimum of fuss!
4.9 hours of HaLRGB data. L 108x15", R 41x60", G 84x30", B 81x30", Ha 35x250".
Thanks for looking!
Guys, I have an order in for a Starizona Hyperstar for my 8” EdgeHD. What sub-1k camera would you pair with this kit? Also what is the learning curve involved, bear in mind I have no imaging experience? I have been looking at the Altair Astro Hypercam Pro TEC 183c, which seems to be getting some favourable comments. My intention is to use an INDI based platform, probably a StellarMate for image and focuser control.
Hey everyone! I’m after some pretty wide-field DSOs that can be captured with an unmodified DSLR without too much struggle (apart from the Orion Nebula.) I can push my exposures up to around 3 minutes with no major star trailing but that’s about as far as I can go. Also I’m in the Southern Hemisphere so don’t have the luxury of choosing between many relatively bright Messier objects. Your suggestions are much appreciated!
Hi All, I am posting what I suspect is a newbie mistake question but hoping that someone can assist with the issue of flats.
Although I have been fumbling around the sky, taking snaps at leisure, recently I became serious. I have read up about the different calibration files (flats, darks, bias) and they seemed to make sense; different ways to capture the image defects and extract those from the image of the sky. After a few weeks (months) of further fumbling I went back to the very first target to receive my attention, M42 Orion Nebula.
In short, I took 20x 30s exposures in LRGB and ran these along with 20x LRGB each of darks, bias and flats. To obtain the flats I used a diffuse sheet of perspex (lightbox material) and an LED video lamp that has 180 white LEDs, turned to its lowest setting. Attached below is the stacked Luminance flat and the light image. In the lights I am getting very strong marks from dust and I had thought that the flats would subtract this but looking at the flats the marks are completely different shapes and do nothing to remove them from the lights.
The attached has been further stretched to show the issue. Now, I am obviously doing something wrong but I have no idea what, any pointers from the vast pool of knowledge will be much appreciated.