Sistittif is a god.

He takes the form of an eight hundred metre long, bad-tempered wombat.

Sistittif created the Whirlpool Galaxy twelve years ago.

If you believe in Sistittif, he will grant your every wish.

If you do not believe in Sistittif, he will jump up and down on your head until it really hurts.

Sistittif's most sacred site is Troqueer in Scotland.

Sistittif's Holy Commandments

1. Worship no other gods but Sistittif.

2. Do not hurt great tits.

3. Never write about planets.

4. Never think about black holes.

5. Pigs are not to be trusted.