Amazing red

Challenge #184 in the Creative genius. series. Hosted by Frenchfx.
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Show us your best red image. Red must be prominent in the image. Full color only. No B&W with a splash of red. Other colors allowed but make sure red stands out.
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Hydrogen-α Red from M-20 nebula
by geo444
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656 nm Hydrogen-Alpha Red coming from Messier 20, Trifid nebula at +/- 50 Billions of Millions of kms away from Earth !
Camera:
Lens:
Submitted: Tuesday, 3rd December, 2019 14:41 (GMT)
Taken: Sunday, 4th August, 2019
Focal length: 1200 mm
Shutter speed: 240 sec
Aperture: F4.7
ISO: 400
Notes: M20 is a very difficult catch as it's very low, 21° over the horizon. Atmosphere is 3x thicker than at Zenit. 45 kms of restless air : discarded raw files reach 50% !
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