| 摘要 |
PROBLEM TO BE SOLVED: To provide a card for constellation observation and its set which are compact and portable and are easy to handle and enable an observer to quickly find the period when and the position where a constellation appears in the sky and accurately display the shape of the constellation. SOLUTION: When observing constellation, an observer takes a card 11 for constellation observation on the surface of which a constellation to be searched is displayed, and the observer confirms the period when and the position in the sky where the constellation appears in accordance with a star chart 15 on the rear side. The observer sees specific positions (1) to (7) in the sky in this period to easily find the constellation to be observed. Since the card 11 for constellation observation has a constellation display part 14 and the start chart 15 on the exposed surfaces, the card 11 is made more compact than a conventional start chart and has a high portability. It is hardly broken even when being roughly treated. Of course, it enables the observer to quickly find the period when and the position where the constellation to be observed appears. The shape of the constellation is accurately displayed.
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