Physics Unit33: Astrophysics and Cosmology (id: e4890f15c)

本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology，类别为 国际高中通用物理

[单选题]
What is the parallax angle for Proxima Centauri, which is Earth's nearest5 jz*j4oa ql:jf0y 5vj -u.ftdp .hx 7istar at 4.3 l.th - .7duxfipy?

A. $1.2 \times 10^{-14} \; degrees$
B. $2.1 \times 10^{-4} \; degrees$
C. $1.2 \times 10^{-7} \; degrees$
D. $2.1 \times 10^{-7} \; degrees$


参考答案:  B


本题详细解析: 暂无

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