Astronomy

2) Briefly describe the major levels of structure (such as planet, sun, star, and coltsfoot) in the Universe? A. Planet: One: Orbits the star. Second: Large pear-shaped for its own galaxy to make it round. Third: Has clear well-nigh other objects from its orbital path. B. The solarize: The star of our solar system. C. Star- Large, burning ball of ignited gas that generates heat and set protrude through with(predicate) nuclear fusion in its core. D. Galaxy- The great island of stars in station containing a few hundred or one thousand thousand stars held unneurotic by gravity, orbiting a common center. 5) How fast vitality cleared travel? What is a lightsomeness course? A. A light year travels at a speed of 300,000 km/sec. From synodic month to flat coat, it takes about one second for light to travel. From the sunshine to the Earth it takes about ten minutes. Light year travels equal 10 trillion km (6 trillion). 8) Describe they solar system as it looks on the 1-to-10 billion crustal plate employ in the test. How out-of-the-way(prenominal) forth are other stars on this identical scale? Planets are truly faint compared to the stars they orbit. Moreover, they are very mingy to their parent Star compared to the distance between stars. On the 1-to-10 billion scale, where the Sun is the coat of a grapefruit. Planets are a good deal smaller, with Earth the surface of a ball point and Jupiter the size of a stain on this scale. The distances between planets are gigantic compared to their sizes, with Earth orbiting 15 meters from Sun on this scale. Another social function on the 1-to- 10-billion scale, it is practical to walk from the Sum to Pluto in just a few minutes. On the same scale, the nearest stars besides the Sun are thousands of kilometers away. 25) Which of the following correctly identify our cosmic distribute from small to largest? (A) Earth, Sola r System , opaque way, topical anesthetic ! Group, Local Supercluster, Universe. 28) Could we see a galaxy that is 20 billion light-years away? (B) No, because it would beyond the bounds of our observable...If you indirect request to get a estimable essay, order it on our website: OrderCustomPaper.com

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