Comet 46P/Wirtanen

Toroid

Toroid

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This comet will make its closest flyby in at least 400 years.
46P/Wirtanen - Wikipedia
46P/Wirtanen is a small short-period comet with a current orbital period of 5.4 years. It was the original target for close investigation by the Rosetta spacecraft, planned by the European Space Agency, but an inability to meet the launch window led to Rosetta being sent to 67P/Churyumov–Gerasimenko instead.[4] It belongs to the Jupiter family of comets, all of which have aphelia between 5 and 6 AU. Its diameter is estimated at 1.2 kilometres (0.75 mi).
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Comet set for its closest flyby of Earth in 4 centuries: What you need to know

www.youtube.com/watch?v=s_oWvL0nxD8
 
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