10/10.
Only tricky one was the constellations (not to be confused with the zodiac), was irritated I didnt know it but then again who compiles the "official" list of "accepted" constallations. I am sure there are some people out there who would say "you forgot the "left handed gorrilla from outter mongolia" as the constallations are just made up anyways.
The one I would say is WRONG on the list tho is how many planets orbit the sun. It should be 11. Reason is that moons are defined as orbital bodies around planets that have the foci of the orbit INSIDE the planet (the more massive of the pair). The earth and moon orbit each other around a foci that is part way between the earth and moon and as such we orbit the moon as much as the moon orbits earth, in other words we are really a DOUBLE PLANET. Pluto is historically recognized as a planet but it and its "moon" charon do the same as earth and our moon. ie pluto and charon are ALSO a double planet.
Just some thoughts (does this mean i can get extra credit for 11/10 ?????).