Deck_2014 : General Navigation - 1467/2111
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| What is the major problem with taking high altitude sun 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. |
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