本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology，类别为 Generic Physics
[单选题]
What is the parallax angle for Proxima Centauri, which is Earth's nearest rt,mx-6 ylflm):oz) lst-dht.yqhbdm8l yt5dt ,+/p ,w ar at 4.3 ly m5d, t+-hth./d tqpbywdy l,8?
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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Post time 2024-1-22 00:41:59