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I'm behind lately with posting images. Now it's Pinwheel's galaxy turn.
Shot until April this year, it took me a few trips to dark/dark-ish sites to gather all the data. It's hard to believe even now how cold it was at the end of April. At the end of the last session, when I was packing, it was -5C. Now the temperature doesn't drop below 20C anymore during the night and during afternoon we have consecutive days with 38C+.
I used, as almost always, a combination of LRGB data shot through multiple telescopes, for a total of almost 13h. The 150mm newtonian was moody, not sure why I always had something that looked like astigmatism, but only in one corner. I hope it was the CC, and I'm eager to see if the GPU CC is better than the Baader MPCC.
An astrobin image is available too here: https://www.astrobin.com/23m3rv/
Clear skies and thanks for watching !
I am brand new to imaging and this is my very first set of images using the ASI224mc attached to a Celestron 130EQ scope and mounted on a HEQ5pro to give it stability and GOTO ability. This scope (OTA) has mixed reviews as it has a spherical mirror and I had little hopes for it. But considering what I have managed to get with just around 8mins of data, its looking promising. 🙂
This image is of M81 Bode's galaxy using around 100 exposures of 5sec each. These have been stacked and post processed in SIRIL. No darks or flats have been taken. Still new to this aspect of it ....The images were captured using Ekos. Any tips on how to improve the image are welcome !
I tried imaging M101 here in our Bortle 5 neighborhood and it was sort of tough due to the light pollution but I think I was able to pull off a bit of data. My problem now is that I was able to increase the visibility of the galaxy through stretching but in the process the background noise also increased. I also noticed that my galaxy and stars are a bit orange/reddish compared to the other M101 shots which are kinda bluish in color. Not sure if this is being caused by my astromodded camera but I tried correcting it via Photoshop and this is the best "white balanced" image that I got.
Looking for some help in this group maybe someone can have a go with my raw file and share some techniques on how to improve my post processing. The stacking was done via DSS and the processing via Photoshop. I also used Gradient Xterminator and also Astrotools.
Here's my edit and I also attached the raw file so maybe you guys can try tinkering with it also. Also open for any suggestions or comments with my initial edit. Thanks! 😁
Light Frames: 189 x 1 min shots @ ISO1600 (yes I still don't have autoguiding) Dark Frames: 198 x 1 min shots Mount: Celestron OmniXLT CG-4 Telescope: Celestron C6N Camera: Canon EOS Rebel XT Hap-Griffin Mod Autosave.tif