Deck : General Navigation - 1559/2138
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| Why are low altitude sun sights not generally used? |
| A) The glare on the horizon causes irradiation errors. |
| B) Modern sight reduction tables are not complete for low altitudes below 5°. |
| C) Sextants may have large errors at small angles of elevation. |
| D) Errors due to unusual refraction may exist. |
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