You do have answered the questions, before you are looking here?
If not, you can go back now, to the .

First some word about getting points:
You get one point for every right answer. If a question needs more than one answer, it can give you several points. So can question number 1 give you a miximum of 5 points.

Result:
24 to 25 points: I am impressed. But I guess that you are a professional.
21 to 23 points: Excellent. One of fifty reaches these astronomical hights.
18 to 20 points: Very good. Your knowledge in astronomy is very satisfying.
15 to 17 points: Good. I am sure that you recognise some stars as well.
12 to 14 points: This is o.k. Average.
 9 to 11 points: Almost o.k., but a little below average.
 6 to 8 points: Well, well, well. My eight year old daughter knew as much.
 0 to 5 points: Probably you live beneath the ground, so that you can't see the sky.

The right answers:

 1) Jupiter, Saturn, Uranus, Neptune and Pluto
 2) Pluto
 3) Mercury
 4) Venus and Mars
 5) Jupiter
 6) 2
 7) Phobos and Deimos
 8) On Jupiter
 9) The distance between the earth and the sun
10) Amalthea, Europa, Io, Ganymede *)
11) 12 (11.8) years
12) 4 lightyears
13) 30000 lightyears
14) Ganymede, one of Jupiter´s moons. (Titan, one of Saturn's moons)**)
15) Triton, belonging to Neptune

*) If you answered Callisto instead of Amalthea, you mentioned Jupiter's four biggest moons, which were discovered by Galileo Galilei. But that was not asked...

**) It was long believed that Titan was the biggest moon in the Solar System, but recent research has shown, that Ganymede is slightly bigger. However, as you might have read before (as I did), that Titan is the biggest, you can count a point for any of the two answers. Thanks at lot to Rich ”Iwillwin”, for telling me.

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