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whatarewii.bsky.social
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High definition image of a dead star.
This is Cassiopeia A, a star that died 320 years ago.
This image was presented today on AAS Nova (ApJL).
aasnova.org/2024/11/12/t...
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A roughly circular cloud of gas and dust with complex structure. The inner shell is made of bright pink and orange filaments studded with clumps and knots that look like tiny pieces of shattered glass. Around the exterior of the inner shell, there are curtains of wispy gas that look like campfire smoke. Around and within the nebula, various stars are seen as points of blue and white light. Outside the nebula, there are also clumps of dust, coloured yellow in the image.
November 12, 2024 at 8:08 PM