Celestial hemisphere:  Southern  ·  Constellation: Microscopium (Mic)  ·  Contains:  Solar system body or event
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Comet C/2021 A1 (Leonard), Scott Stirling
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Comet C/2021 A1 (Leonard)

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Comet C/2021 A1 (Leonard), Scott Stirling
Powered byPixInsight

Comet C/2021 A1 (Leonard)

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Description

Comet Leonard, Dec 23, 2021 via Planewave 17K in Chile.

R = 5x 60s
G = 5x 60s
B = 5x 60s
L = 5x 60s

"Super luminance" created from R+G+B+L.

Processed with Comet Alignment process in Pixinsight, Dynamic Background Extraction, Multiscale Linear Transformation (noise reduction in SuperL), HDRMultiscale Transform (on Super L), LRGBCombination, etc.

On why comet bodies glow green: https://www.popsci.com/science/why-do-comets-glow-green/
As the sun heats the molecules in the comet’s body, they gain energy and glow, but they break down into single carbon atoms before they can reach too far into its tail. This explains why the green glow only exists around the body of the comet, not its long tail.

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  • Final
    Comet C/2021 A1 (Leonard), Scott Stirling
    Original
  • Comet C/2021 A1 (Leonard), Scott Stirling
    B

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Comet C/2021 A1 (Leonard), Scott Stirling