The Supernova That Formed M-1, the Crab Nebula, Was Observed

question 21

Multiple Choice

The supernova that formed M-1, the Crab Nebula, was observed in:

• A)1572 AD by Tycho Brahe.
• B)1604 AD by Johannes Kepler.
• C)1054 AD by Chinese and Middle Eastern astronomers.
• D)1006 by observers in the southern hemisphere.
• E)about 9,000 BC by all our ancestors.

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