Hello and welcome to another Blacklegend cache.
This cache is based on "The 8 Planets" hence the name. First a little information.
Our Solar System consists of 8 planets. It used to be 9, but it was decided that Pluto was not a "major" planet and was re classified as a Dwarf Planet.
Check out this link for the information you need to solve the crossword, well some of it anyway. Google is your friend.
http://en.wikipedia.org/wiki/Solar_System
How to solve this puzzle
Do the crossword above, then to complete the last three digits in South and East, use the number of the clue for these Planets.
For South the coordinates are 27.53.???
Jupiter -1
Venus +3
Uranus
For East the coordinates are 153.24.???
Neptune -4
Saturn +6
Mercury +6
That's it, you get to learn a little bit about the 8 Planets, but there is heaps more reading on the Wiki link provided.
I hope you enjoy this simple but educational puzzle. BL.
You can check your answers for this puzzle on GeoChecker.com.