Comet C/2011 W3 (Lovejoy) Was discovered in November 2011 by Australian amateur astronomer Terry Lovejoy.
The comet's perihelion took it through the Sun's corona on 16 December 2011, after which it emerged intact.
As Comet Lovejoy was announced on the 16th anniversary of the SOHO satellite's launch it became known as "The Great Birthday Comet of 2011", and because it was visible from Earth during the Christmas holiday it was also nicknamed "The Great Christmas Comet of 2011".
sources:
NASA SOHO (link to comet C/2011 W3 (Lovejoy)) https://sohowww.nascom.nasa.gov/pickoftheweek/old/03dec2011/
NASA STEREO (link to NASA STEREO) https://stereo.gsfc.nasa.gov/
Wikipedia (link to C/2011 W3 (Lovejoy)) https://en.wikipedia.org/wiki/C/2011_W3_(Lovejoy)