Aftereffects of the Collision of NGC 218 and PGC 2726
From Adam Block
"Like the more famous Whirlpool galaxy, the interloper to the left pulls and severely distorts the regular spiral galaxy. To my eye it appears that the nucleus of the main galaxy has been tugged so violently that it has been displaced from its former central location based on the persistent spiral pattern that remains!
This galaxy is more than 500 million light years away and it is a tiny 1 acrminute across. It is also one of the many discrepancies found in the NGC catalogue. I am labeling this object NGC 218 and PGC 2726 (the interloper) based on the most recent analysis I could find.
Find more galactic crashes in the bottom right corner of the wide-field version [that can be accessed at Adam's Site]"