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What is the major limitation in using the Sight Reduction Tables for Air Navigation Volume I (Pub. No. 249) for star sights? |
A) More accuracy is needed for celestial observations on board ship than what is tabulated. |
B) Only first magnitude stars are tabulated. |
C) Sights must be made at even time increments to benefit from the tables. |
D) Only certain stars are included and sights must be limited to those stars. |
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