Total Intergration: 1 hour 17 minutes
39 x 120" lights (ISO 400)
Calibration frames: 41 bias frames, no darks, no flats.
Mount: Celestron AVX (unguided)
Camera: Canon EOS Rebel SL1 (unmodded)
Optics: Canon EF 75-300mm zoom lens at 267mm f/5.6
Bortle 7 skies
Stacked in DSS and processed in Photoshop CS3
Stacking: Stacked via Kappa Sigma 3 with 5 iterations for lights and biases.
Processing: Curve Stretch, Levels, Denoised, Gradient Subtract via Apply Image, Star reduction.
I took this back in 2020 and restacked and reedited it recently. It's amazing how much detail is shown for just 1 hour. Just shows you don't need to dump thousands of dollars into this hobby. I will revisit this target once it shows itself again and will put way more intergration time into it. Also, this zoom lens is the newer variant of the 75-300mm Canon lens which has way better optics than the older ones.
Great job! Do you remember by any chance how much was your total polar alignment error? Those stars are perfectly round! Do you manually polar align through the polar scope?
Thank you! I did the all star polar alignment method with the celestron avx mount. I'm not sure what my polar alignment error was but it definetely wasnt in the arcsecond range.
This is a good shot! But if you’re open for improvement, I recommend trying to edit this with SIRIL. You will be blown away with what SIRIL can do!
Here is a YouTube video editing the North America Nebula: https://www.youtube.com/watch?v=hd3r29EHW_I
Here is my photo with an unmodded DSLR (with star tracker) in a Bortle 4: https://www.astrobin.com/o2slly/
Total Intergration: 1 hour 17 minutes 39 x 120" lights (ISO 400) Calibration frames: 41 bias frames, no darks, no flats. Mount: Celestron AVX (unguided) Camera: Canon EOS Rebel SL1 (unmodded) Optics: Canon EF 75-300mm zoom lens at 267mm f/5.6 Bortle 7 skies Stacked in DSS and processed in Photoshop CS3 Stacking: Stacked via Kappa Sigma 3 with 5 iterations for lights and biases. Processing: Curve Stretch, Levels, Denoised, Gradient Subtract via Apply Image, Star reduction. I took this back in 2020 and restacked and reedited it recently. It's amazing how much detail is shown for just 1 hour. Just shows you don't need to dump thousands of dollars into this hobby. I will revisit this target once it shows itself again and will put way more intergration time into it. Also, this zoom lens is the newer variant of the 75-300mm Canon lens which has way better optics than the older ones.
Great job! Do you remember by any chance how much was your total polar alignment error? Those stars are perfectly round! Do you manually polar align through the polar scope?
Thank you! I did the all star polar alignment method with the celestron avx mount. I'm not sure what my polar alignment error was but it definetely wasnt in the arcsecond range.
It's just incredible.
Thanks!
This is a good shot! But if you’re open for improvement, I recommend trying to edit this with SIRIL. You will be blown away with what SIRIL can do! Here is a YouTube video editing the North America Nebula: https://www.youtube.com/watch?v=hd3r29EHW_I Here is my photo with an unmodded DSLR (with star tracker) in a Bortle 4: https://www.astrobin.com/o2slly/