| 摘要 |
PROBLEM TO BE SOLVED: To provide a card game which is not too difficult and allows many people to enjoy playing to give more people a chance of becoming familiar with astronomical knowledge. SOLUTION: First, an existing natural system, which is academically named the solar system, is used as the base of information. Furthermore, because minute regulations are avoided, players of the game card can enjoy devising other ways of playing and are given freedom of play. COPYRIGHT: (C)2006,JPO&NCIPI
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