Asteroid 17681,Tweedledum, was discovered on January 6, 1997 by Takeshi Urata at Nihondaira Observatory in Shimizu, Shizuoka, Japan.. It has a period of 2 years, 170 days and is slightly over 1 1/2 miles in diameter.

It was named for a character from Lewis Carroll's Through The Looking Glass, the twin brother of Tweedledee. The names Tweedledee and Tweedledum come from an English nursery rhyme.

John Tenniel's 1871 illustration from Through The Looking Glass: Alice meeting Tweedledee and Tweedledum (right)

Astrologically, according to Henk Middelraad, asteroid Tweedledum seems to be about pointless arguing.; possibly it could indicate "all about me", being a "dittohead."

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