航海英語(yǔ)天文航海單項(xiàng)選擇題每日一練(2019.01.26)

來(lái)源：考試資料網(wǎng)

1 In working out a local apparent noon sight for your latitude，you subtract the Ho from 90°. The 90°represents the angular distance from（）.

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2 A star is observed at lower transit. The line of position derived from this sight is（）.

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3 Capella is found in what constellation? （）

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4 A marine sextant has the index arm set at zero and the reflected image of the horizon forms a continuous line with the actual image. When the sextant is rotated about the line of sight the images separate. The sextant has（）.

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5 Other than the Sun and Moon，the brightest object in the sky is（）.

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