Russell Croman Astrophotography  



The Medusa Nebula in Elemental Colors

About This Photograph

This planetary nebula in the constellation of Gemini was discovered in 1955. Like all planetary nebulas – so named because they looked like planets in early telescopes – it consists of the outer layers of a dying star, shed slowly into space near the end of its life. The exposed hot core of the star shines strongly in the ultraviolet spectrum, causing the expanding shell of gas to glow due to fluorescence.


Related Photographs

The Medusa Nebula

Technical Details

Optics:PlaneWave 14" CDK
Mount:Paramount ME II
Filters:Chroma 3nm [SII], H⍺, [OIII]
Dates/Times:6 January - 8 February 2021
Location:RC-Astro North Observatory at New Mexico Skies
Exposure Details:RGB = 3.8 hours, [S II]:Hα:[O III] = 19 hours
Acquisition:MaxIm DL 6, ACP Expert
Processing:PixInsight, Photoshop