Our sun is in the MILKY WAY galaxy, which measures about 100, 000 light-years across. That long thin milky bright shape across the middle of the night sky is made up of about several billion stars in our galaxy. Our galaxy is a spiral(旋转的) galaxy. but there are other types.The ...
Milky Way GalaxySolar PositionSpiral GalaxiesGalactic RotationPlanetary SystemsStellar EvolutionIt is shown that the sun's position near the galactic corotation circle, on which the angular velocity of the differential rotation of the Galaxy is equal to the angular velocity of a wave, makes it ...
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At the time of the observations, SOHO is looking towards the heart of the Milky Way Galaxy, which lies in the constellation of Sagittarius. The Milky Way, made by the light of billions of distant stars, forms a luminous band slanting down and to the right. Dark lanes seen in the Milky ...
The Sun is a main-sequence star, one of over 100 billion stars in the Milky Way galaxy (Plate 1,2). It takes the Sun over 200 million years to complete one orbit of the galaxy. It is located at present close to the Sagittarius—Carina spiral arm, in what is called the Orion spur...
用所给单词或词组的适当形式填空galaxy,planet,solar system,star,universe(1).The sun and its planets are called the(2).The solar system is a small part of our(3).Our sun is one of the of the Milky Way.(4).scientists have discovered many other galaxies in the(5).The earth is a and...
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根据文中Our sun is one of about 100 billion stars in our galaxy, the Milky Way.我们的太阳是银河系中大约1000亿颗恒星之一。可知银河系大约有1000亿恒星。故填: About 100 billion. 2. 题干:为什么看不到手枪星?根据文中Because of space dust we can't see it with the naked eye.由于太空尘埃,...
(G stars are so called because of the prominence of a band of atomic and molecular spectral lines that the German physicist Joseph von Fraunhofer designated G.) The Sun exists in the outer part of the Milky Way Galaxy and was formed from material that had been processed inside a supernova...
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