Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Extremely wide field
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Big Dipper Surrounded by Air Glow, RadMan24
Big Dipper Surrounded by Air Glow
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Big Dipper Surrounded by Air Glow

Getting plate-solving status, please wait...
Big Dipper Surrounded by Air Glow, RadMan24
Big Dipper Surrounded by Air Glow
Powered byPixInsight

Big Dipper Surrounded by Air Glow

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Description

Big Dipper surrounded by air glow -- at the 2023 AHSP Star Party in Spruce Knob, WV.

Camera: 90d Lens: Sigma 40mm f/1.4
Settings:
30 second exposures
ISO: 800
Frames: 10

Processing:
Adobe Raw: In-camera daylight balance, lens profile corrections, no darks. 
DSS stacking
Rnc-color-stretch color preserving stretch, with histogrambox to modify black point
Photoshop for curves work after stretching and to maintain color space throughout, and to make jpg/sRGB conversion.

Story of shot is that a few of us at the star party noticed significant air glow, visually seeing a greenish hue (though we were adapted with red light), I decided to take a few photos towards big dipper and see what the camera would pick up. Significant yellow-green airglow bottom of image, with slight cloud/light pollution of bottom left, and banding air glow higher up in altitude.

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Big Dipper Surrounded by Air Glow, RadMan24