Robuta

https://www.sciencedaily.com/releases/2010/04/100414124424.htm
Scientists have identified a new candidate for the biggest comet measured to date. Instead of using the length of the tail to measure the scale of the comet,...
biggestcometmeasureddatemcnaught
https://www.science20.com/news_account/mcnaught_comets_impact_on_solar_wind_a_new_physics_mystery
Comets are made of the most primitive stuff in the solar system. As hunks of rock and ice that never coalesced into more planets, they give researchers clues...
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https://www.spaceweather.com/comets/gallery_mcnaught_page12.php
comet mcnaught