Which of the following is true of variable stars?
Câu hỏi
Nhận biếtWhich of the following is true of variable stars?
Đáp án đúng: A
Lời giải của Tự Học 365
Giải chi tiết:
Đáp án là A. Ý trong đoạn 2: Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its brightness . Tính sáng đề cập đến lượng năng lượng bức xạ của một ngôi sao, trong khi cường độ đề cập đến độ sáng của nó
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