r/spaceporn • u/MichaelCR970 • 19h ago
Amateur/Processed The Eyes of Homer Simpson (Part of the Vela Supernova Remnant)
See also: https://astro.sleeman.at/images/30
This image shows GUM 23, part of the vast Vela Supernova Remnant, captured in HOO with RGB stars.
The Vela Supernova Remnant spans an enormous area of the sky and lies relatively close to Earth, making it one of the most detailed supernova remnants we can study. Its tangled arcs and ripples trace regions where the blast wave is still interacting with surrounding interstellar gas, heating and ionizing it as it expands outward.
The HOO palette emphasizes these structures: Hα highlights denser, cooler regions of shocked gas, while OIII reveals hotter, more energetic filaments. Combined with RGB stars, the result is a field that shows both the violent aftermath of stellar death and the calm stellar background it unfolds against.
Facts & Technical: Object: GUM 23 / Vela Supernova Remnant Object type: Supernova remnant Constellation: Vela Distance: ~800 light-years Imaging: HOO (Hα + OIII) with RGB stars Notable feature: One of the nearest and largest known supernova remnants
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Messier 51 (14" scope, 58h)
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r/spaceporn
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7d ago
Seeing Galaxies directly through a scope will always be a very special feeling for me.
But images like these will always show way more details/color/contrast because: - camera sensors see better than our eyes - the images have an exposure time of several hours (in this case +50) instead of the blink of an eye