题目Which of the following is NOT a star? A. The sun. B. The moon. C. Sirius. D. Polaris. 相关知识点: 试题来源: 解析 B。本题考查对星星的认识。太阳、天狼星、北极星都是星星,而月亮是地球的卫星,不是星星,所以选 B。反馈 收藏
The nearest star to Earth after the sun is ___. A. Proxima Centauri B. Sirius C. Betelgeuse D. Polaris 相关知识点: 试题来源: 解析 A。解析:除太阳外,离地球最近的恒星是比邻星。选项 B 天狼星;选项 C 参宿四;选项 D 北极星。反馈
The closest star to the Earth is ___. A. the sun B. Sirius C. Proxima Centauri D. Betelgeuse 相关知识点: 试题来源: 解析 A。离地球最近的恒星是太阳。选项 B 天狼星;选项 C 比邻星虽然也是恒星但距离地球比太阳远;选项 D 参宿四也离地球很远。
Which one is not a star? A. The Sun B. The Moon C. Sirius D. Vega 相关知识点: 试题来源: 解析 B。本题考查对天体的分类和理解。太阳“The Sun”、天狼星“Sirius”、织女星“Vega”都是恒星,而月亮“The Moon”是地球的卫星,不是恒星。
Scientists using a new telescope found the size of the North Star, also known as Polaris. It turns out thatPolaris is 46 times larger than the Sun. ... Cepheids are known to be much larger than normal stars like the Sun. Polaris is one of the most famous stars in our night sky. ...
The meaning of dog days in scorching heat is three dog days, and there are two sources of this expression. Dog days的意思是三伏天,关于这个表达的来源有两种说法。 The first discovery originated from Roman astronomers in the 16th century. In the hottest weeks every year, Sirius always rises and...
Stars that are magnitude 1 or 0 are the brightest in the night. The Sun is about magnitude -27. The full Moon is magnitude -13. Sirius A and B by Fernando Oliveira De Menezes, Sao Paulo, Brazil. Equipment: CELESTRON C11, câmera 290mm Astronomers also use the term absolute magnitude...
The sun always has a solar luminosity value of 1, and a greater figure means it releases more energy than the sun by a factor of how much it is. Generally speaking, a blue star will have a higher luminosity than a red star. There are exceptions to this, but this is how things are...
The Largest Star in the Universe – Size Comparison 41 related questions found What is the hottest star color? White stars are hotter than red and yellow.Blue starsare the hottest stars of all. What is the most beautiful star? 2 days ago · What is the most beautiful star?Sirius A (Alp...
It gets you access to the V6 engine at just $1,000 more than the sportier-looking base model. The effortless power delivery is more than worth the extra investment, but you don’t really need the F Sport Handling upgrades. The larger wheels hurt ride comfort and the basic sedan already...