What is the major limitation in using the Sight Reduction Tables for Air Navigation Volume I (Pub. No. 249) for star sights?

Question

Accepted Answer

Only certain stars are included and sights must be limited to those stars.

Answer

Sights must be made at even time increments to benefit from the tables.

Answer

Only first magnitude stars are tabulated.

Answer

More accuracy is needed for celestial observations on board ship than what is tabulated.

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