Videos of ocassiopeia

The phosphorus-iron ratio was up to 100 times higher in the material from the remnant than in the host galaxy (the Milky Way) in general.Cassiopeia A was the only supernova remnant to be modelled in 3D and the only deep sky object to be included in the Smithsonian 3D project.The Hubble image shows the complex and intricate structure of the star’s shattered fragments.Image: NASA, ESA, and the Hubble Heritage (STSc I/AURA)-ESA/Hubble Collaboration. Fesen (Dartmouth College, USA) and James Long (ESA/Hubble) Cassiopeia A is the brightest extrasolar radio source in the sky at frequencies above 1 GHz.This dance, called an “infrared echo,” began when the remnant erupted about 50 years ago.Cassiopeia A is the remnant of a once massive star that died in a violent supernova explosion 325 years ago.

The clouds of expelled material would have cloaked the light of the supernova event.The optical component of the remnant was first discovered in 1950.The central star of Cassiopeia A is a neutron star.These Spitzer Space Telescope images, taken one year apart, show the supernova remnant Cassiopeia A (yellow ball) and surrounding clouds of dust (reddish orange).The pictures illustrate that a blast of light from Cassiopeia A is waltzing outward through the dusty skies.

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