
111星等
Quiz
•
Education
•
10th Grade
•
Practice Problem
•
Medium
SW簡巧菱 SW簡巧菱
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6 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
星等差一等,亮度約差幾倍?
1
2
2.5
5
10
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
星等差五等,亮度差幾倍?
1
5
10
100
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
恆星顏色與下列何者相關?
恆星表面溫度
恆星與地球距離
恆星的體積
恆星視星等
恆星絕對星等
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
紅色的天蠍座最亮星心宿二及藍色的海王星,何者表面溫度較高?
心宿二
海王星
無法判斷
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A恆星視星等3等,距地球1秒差距(3.26光年)(視差角=1角秒),求其絕對星等為幾等?
-2
1
3
8
10
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
人的瞳孔直徑約7mm,請問要用多大的望遠鏡可見11等星?
50
60
70
100
150
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