圓盤形，精美印製，直徑300mm。
可觀測星座及月亮出現之方位關係。
These moon and star locators are 300mm in diameter and are made of weather-resistant plastic.
They have a number of advanced features, such as azimuth and altitude lines, and a setting for dialing in the coordinates of any celestial object.
Also included are position tables for the moon according to the lunar calendar.
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