Sextants are used to measure angular heights of celestial bodies above the horizon to find the latitude and longitude of the observer. They can also be used on land with artificial horizons. Sextants ...
How to Use Plastic Sextants: With Applications to Metal Sextants and a Review of Sextant Piloting
- 作者： David Burch
- 出版社： Starpath Publications
- 出版日期： 2010-09-27
- ISBN碼： 9780914025245
- 編號： 1001294883152575
$ 900 元
原價 900
-
$900