Sorry to be a pedant,
but the largest known one is a mere 236.7 billion kilometres across (a piffling 9.1 light days, or 25.6 trillion double-decker buses).
That's impressive enough though.
(
wheresthefish Partly filled with wrong, Sun 22 Feb 2015, 19:34,
Reply)
It's not only impressive. It's truly terrifying.
(
Jabberwoc misses D.R. and Quinch, Sun 22 Feb 2015, 23:38,
Reply)
Not Even
Boris, could think that number of buses would be a good idea.....
(, Mon 23 Feb 2015, 19:26, Reply)