| 摘要 |
The present invention relates to a both-sided constellation board, in which a lower plate displays southern sky constellations on one side and northern sky constellations on the other side, and upper plates are overlapped on both sides of the lower plate and have earth plates and transparent windows, and the constellations in both the southern sky and the northern sky are simultaneously checked on a time by rotating the upper plates to set the month, date and time indicated on the edge on the upper plates. More specifically, the present invention relates to a both-sided constellation board, in which southern sky constellations and northern sky constellations are respectively displayed on both sides of one lower plate, a southern earth plate and a northern earth plate are respectively displayed on two upper plates combined to be overlapped with the lower plate on each side of the lower plate in a rotatable manner by a rotary axis in the center, and southern sky constellations are displayed on the transparent window on one side and northern sky constellations on the other side when a desired time is set on the month, date and time table indicated on the edge by rotating an edge handle connecting the two upper plates. |
