What is the major problem with taking high altitude observations?
A
Possible errors due to unusual refraction may exist.
B
The tables are not as accurate due to inherent errors in the spherical triangle at high altitudes.
C
Rapidly changing altitudes make it difficult to get an accurate altitude.
D
It is difficult to establish the point where the sextant is vertical to the horizon.
E
İlgili Sorular
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