Russell Croman Astrophotography  



Supernova Remnant Simeis 147

About This Photograph

Simeis 147 is a supernova remnant, the remains of a star that exploded approximately 40,000 years ago. Its tangled filamentary appearance gives rise to its more colloquial name, the Spaghetti Nebula. The colors arise from specific elements in the nebula: red is hydrogen, yellow is sulfur, and blue is oxygen. Over 300 individual exposures totaling 93 hours, taken over a three-month period, were required to produce this photograph.


Technical Details

Optics:Takahashi FSQ-106 EDX4
Mount:Paramount MX+
Filters:Chroma R, G, B, and 3nm [SII], H⍺, [OIII]
Dates/Times:14 October - 22 December 2020
Location:RC-Astro North Observatory at New Mexico Skies
Exposure Details:RGB = 4 hours, [S II]:Hα:[O III] = 89 hours, two-frame mosaic
Acquisition:MaxIm DL 6, ACP Expert
Processing:PixInsight, Photoshop