Sirius C. Proxima Centauri D. Betelgeuse 相关知识点: 试题来源: 解析 C。本题考查对离地球最近的恒星的了解。The nearest star to the earth(离地球最近的恒星)is Proxima Centauri(比邻星)。Alpha Centauri(半人马座阿尔法星)、Sirius(天狼星)和 Betelgeuse(参宿四)都不是离地球最近的恒星。
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The word Sirius is derived from the Greek word for "glowing" or "scorching" and the star is twice as big as the sun. Sirius will appear brighter in the next 60,000 years, as it is gradually moving closer to the solar system and Earth....
Our sun and the star Sirius are both main-sequence stars. The main-sequence stars stay in the main sequence for approximately 10 billion years. Red dwarf stars: Red dwarf stars are smaller and cooler than main-sequence stars. They are the most numerous type of star in our galaxy, but ...
What's the brightest star you can see in the sky tonight? If you live below 83 degrees north latitude, thebrightest starin the sky is Canis Alpha Majoris, or Sirius. Seriously, (bad pun intended) the -1st magnitude star is usually the fifth brightest natural object in the sky, and sits...
Originating from Sirius, one of the most important stars to play a role in spiritual awakening, Sirian starseeds are peacekeepers and guardians: bold, strong-willed, and passionate beings with a strong sense of responsibility and leadership. They often exhibit a focus on technology, innovation, an...
Sirius, the brightest star in Canis Major and in the entire night sky, too, is hard to miss once it clears the trees and rooftops in the southeast by 7:30 p.m. local time. Also known as the Dog Star, it will climb to its highest point in the lower part of the southern sky shor...
stars with common names such as sirius, cursa, regulus and nunki are large stars that can be seen in the sky and have been known since the early days of astronomy. They were given star names when astronomy was in its infancy. Stars aren't given common names any more because there are...
The Brightest Star in the Sky Sirius is the brightest star in the sky if you don’t count our own Sun. Under the right conditions, it can even be seen with the naked eye during the day. Sirius is one star in a group of stars that form the constellation Canis Major, meaning “Greate...
What's the brightest star you can see in the sky tonight? If you live below 83 degrees north latitude, thebrightest starin the sky is Canis Alpha Majoris, or Sirius. Seriously, (bad pun intended) the -1st magnitude star is usually the fifth brightest natural object in the sky, and sits...