Aw, CRAP!
I missed the "What planet's orbit takes it farthest from the Sun?" which shows you you shouldn't rush through these things. Mistook it for the "which planet is farthest from the sun" which I believe has been Neptune for a while, although I dimly remember that Pluto had recently moved out past Neptune's orbit again.
Got all the rest.
Wouldn't have known the constellation one if someone had asked the number, but I knew it was more than the other two choices. A "None of the above" choice would have killed me.