Question

Q3. Why does the moon look as big as the sun ?
Q4. How many known constellations are there in the night sky ? Name some of the constellations.
Q.5. What is light year?​

Answer 1

Answer:

3.when we see the moon from the Earth it looks as big as the sun because the sun is farthest from the Earth whereas moon is closest as compared to the sun so if it is different in diameters also it looks almost the same.

4.

88

How the Night Sky Constellations Got Their Names. There are 88 officially recognized constellations in the sky, and these astronomical patterns have a fascinating and long history.

5.The light-year is a unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometres or 5.88 trillion miles. As defined by the International Astronomical Union, a light-year is the distance that light travels in vacuum in one Julian year.

5.

Answer 2

Explanation:

Answer: when we see the moon from the Earth it looks as big as the sun because the sun is farthest from the Earth whereas moon is closest as compared to the sun so if it is different in diameters also it looks almost the same.

Answer: There are 88 officially recognized constellations in the sky, and these astronomical patterns have a fascinating and long history.

• The Big Dipper/Ursa Major, 'The Great Bear' This may be 'cheating' a little bit because the Big Dipper is not technically a constellation, but part of a constellation known as Ursa Major.
• The Little Dipper/Ursa Minor, 'The Little Bear'
• Orion, 'The Hunter'
• Taurus, 'The Bull'
• Gemini, 'The Twins.

Answer: A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers.