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Category > StatisticsPosted 18 Jun 2017My Price7.00
Observations show that the gas ejected from SN 1987A is moving at about 10,000 km/s
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Observations show that the gas ejected from SN 1987A is moving at about 10,000 km/s. How long will it take to travel one astronomical unit? One parsec? (Note that 1 AU equals 1.5 × 108 km, and 1 pc equals 3.1 × 1013 km.)