Following is the zoomed in on the M101 and cropped image using the above one.
And the following is a comparison between the with and without H alpha signals.
📸 Captured with:
• ASI 533MM Pro
• Askar FRA500
• Antlia LRGB filters
• SVBONY 106 50mm Guide scope
• ASI 220MM Guide cam
• NINA
• AM5
🌃 Location & Session Details:
• Trevinca, Spain
• Bortle 3/4 skies
• Captured in Apr 2024
📸 Integration
• R: 300’x27
• G: 300’x31
• B: 300’x32
• L: 300’x30
• OIII: 300’x40
• Ha: 300’x44
• Total exposure is 17 hours.