单项选择题
Capella is found in what constellation? （）
A.Gemini
B.Auriga
C.Libra
D.Crab
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相关考题
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单项选择题
Because the actual center of some planets may differ from the observed center，the navigator applies a correction known as the（）.
A.phase correction
B.refraction correction
C.semidiameter correction
D.augmentation correction -
单项选择题
As observed from the Earth，the angle between lines from the Earth to the Sun and the Earth to an inferior planet is known as（）.
A.elongation
B.conjunction
C.opposition
D.quadrature -
单项选择题
Apparent altitude is sextant altitude corrected for（）.
A.parallax and personal error
B.inaccuracies in the reading and reference level
C.visibility and magnitude
D.All of the above are correct
