Kepler's Supernova Remnant in X-Rays
This nebula was created by a star explosion. It is known as Kepler's Supernova and is located in the Milky Way in the constellation Ophiuchus. This nebula, when it was formed, was visible to the naked eye and had a magnitude of 2.5. Kepler first observed it in Italy in 1604. Kepler did not use a telescope when he was discovering it. Now, scientists use various telescopes like the X-Ray Observatory used to create this picture. This was a white dwarf star which exploded after accumulating material from a Red Giant companion. This supernova is about 13,000 light years away and is the most recent supernova to be observed in the Milky Way galaxy.
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