
These planets can be visible on the night-sky.
Most of them are following a standard pattern that can be predicted, but there is one that seems to be totally unpredictable: mars. Because of the unpredictional behavior (and the red color) of mars, the ancient Egyptians and Greek and most other civilisations (all, as far as I know) associated him with war, epidemics, turmoil etc. Evil.
Maybe a nice idea to make such stars? They need not be planets, but they do move seeming randomly around the sky...
Xaron (the annoying)
Shelam, master of delusion
PS, Mars is the roman name of the Greek god Ares. God of war.
PS2, maybe two stars are a nicer thing, with them being in one line when an eclips occurs as a symbol that would end the world (said by a mythe).
I really "need" such a star for gnomish theology.