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1. What are celestial bodies? Give two examples.
2. Name the star closest to the sun.
3. How far is the sun from the earth?
4. Which is the largest and brightest thing in the night sky?
5. Name the first man to walk on the moon.
6. Name a series of Indian satellites used for weather forecasting.
7. Which celestial body was earlier considered a planet but is no
8. Give an example of a comet.
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Answers
Answer:
1.By definition a celestial body is any natural body outside of the Earth's atmosphere. Easy examples are the Moon, Sun, and the other planets of our solar system.
2.Alpha Centauri A
Of the three stars in the system, the dimmest - called Proxima Centauri - is actually the nearest star to the Sun. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance.
3.149.67 million km
4.jupiter planet is the largest thing in the night sky .
5.Neil Armstrong
On July 20, 1969, Neil Armstrong became the first human to step on the moon. He and Aldrin walked around for three hours.
6.Solution: Indian satellite or INSAT unit is launched by the ISRO or Indian Space Research Organisation which is used for weather forecasting and television broadcasting.
7.Pluto
Answer. The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one—it “has not cleared its neighboring region of other objects.”
8.For example, Comet Hyakutake, seen in 1996, is a long-period comet. ... Halley's Comet is a famous example of a short-period comet with an orbit of just 75 or 76 years. Speaking of Halley's Comet, there are thought to be two subgroups of short-period comets, Halley-type comets and Jupiter-type comets.
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