本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology，类别为 Generic Physics
[单选题]
The Earth's orbit has a oj /j 3+fgz3kkmean radius of 5k zt ob rdv9v ,qb6a);s/c(pt$1.5 \times 10^{8} \; km$. Over a six-month period, the apparent position of a particular star varies by $0.00014^{\circ}$ due to parallax. How distant is the star, in km?
A. $1.2 \times 10^{11} \; km$
B. $1.2 \times 10^{14} \; km$
C. $1.2 \times 10^{17} \; km$
D. $1.2 \times 10^{20} \; km$
参考答案: B
本题详细解析:
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Post time 2024-1-22 00:41:59