Podcast
Questions and Answers
كم هو عمر المجرة المضيئة؟
كم هو عمر المجرة المضيئة؟
- 13.5 بالمليون سنة (correct)
- 13.5 بالملايين سنة
- 100000 سنة في الضوء
- 100000 سنة في الظلام
ما هو حجم النجم؟
ما هو حجم النجم؟
- يحدد بواسطة الشخصية
- يحدد بواسطة الحجم
- يحدد بواسطة الشحنة
- يحدد بواسطة الكتلة (correct)
كم عدد النجوم في المجرة المضيئة؟
كم عدد النجوم في المجرة المضيئة؟
- 13.5 بالمليون
- 13.5 بالملايين
- 100000
- 100 بالمليون (correct)
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Study Notes
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The astronomy of the past few centuries has made great advances in understanding the movements of stars and planets.
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Now, scientists are able to see more stars and planets than ever before.
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The current astronomy has revealed that the Milky Way galaxy contains more than 100 billion stars.
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The size of a star is measured in terms of its mass and its radius.
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The current astronomy has also revealed that stars in the Milky Way galaxy range in size from small to very large.
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The current astronomy has also revealed that the Milky Way galaxy is about 13.5 billion years old and has a radius of 100000 light years.
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The current astronomy has also revealed that the Milky Way galaxy is home to more than 100 billion stars.
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