New Information about Kepler's Super Nova
More than 400 years after astronomer Johannes
Kepler witnessed the appearance of a spectacular new star in the night sky,
astronomers have uncovered new details about the origins of this famous supernova.
The supernova remnant contains iron-rich material surrounded by an
expanding shock wave that scarfs up interstellar gas and dust in its path. The
Wrapping of gas and dust is estimated to be 14 light-years wide and is
expanding at 4 million miles per hour.
A new study has found out that the
explosion that was very powerful than it was imagined and it also seems that
the explosion occurred much farther out in space. The supernova was originally
viewed by naked eye as there were no telescopes at that time. Estimates vary
from 10,000 light-years to as much as 15,000 and 21,000 light-years.
After data supplied by NASA's Chandra X-ray Observatory,
astronomers now believe that the supernova, first observed on Earth in 1604,
was the result of a cosmic collision between supernova debris and material that
the giant star expelled before the explosion. Another possibility about the
supernova's origin is that the structure consists of just debris from the
explosion.
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