and coasts by the Earth.

This was also the term for when a comet did a flyby of Mars in 2014.

P/2016 BA14 was radar imaged at distance of 2.2 e6mi from Earth in 2016, during its flyby. This enabled the size of the nucleus to be calculated to about 1 km in diameter.

On December 16, 2018 the short period comet 46P/Wirtanen had its closest approach of Earth, coming within 7.1 e6mi (one of its closest

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