WRITE 100 WORDS ON WRITE A BRIEF NOTE ON STARS.
Answers
Explanation:
Men have taken an interest in stars since the earliest times. In Mesopotamia, the pellets dug by the inscriptions on the walls of ancient cities and the inscriptions of ancient Egyptian tombs prove that the ancient Babylonians and Egyptians studied the stars and their changing conditions in the sky carefully.
We hardly know that these ancient people thought what the stars were; But as they believed the sun and the moon as the great gods or the habitat of the gods, stars in their mind were associated with fewer deities, which had an influence on the fate of men.
This belief gave birth to astrology, which teaches that during the birth of a person, that particular star which is in ascending, determines his character and fortune on earth.
The Greeks and Romans gave their gods and the names of the gods and heroes to the constellations, or groups of stars and planets; And they believed that some planets were lucky and others were inauspicious.
For example, if a person was born under Saturn, he would be sad and unlucky (hence the English word "Saturnin"); If under Mercury he will be distracted and playful (hence "business"); If beneath Mars, the red planet of the god of war, it will be like "martial," or war; And so on.
We do not believe in modern astrology now. We study stars with scientific methods, and with the scientific object to explore the truth about them. The scientific study of stars is called astronomy to separate from the science of astrology.
Modern astronomers have discovered with the help of amazing scientific instruments such as powerful telescopes, spectroscopes, etc., and with the help of math that what the stars are, their size, weight, structure, their real and clear speed, and their distances are in space.
By the time of an Italian astronomer Copernicus in the 15th century, people believed that the Earth is the center of the universe, and that the sun, the moon, and the stars revolve around it.
Now we know that the Earth is only a small planet that revolves with other planets revolving around the Sun, and that the Moon is its very small satellite or servant; The sun is just a small star; Those stars are great suns, which are very big to our sun, but we are so far away from us that they look like a flickering point of light.
Light travels 186,000 miles in a second; And some stars have hundreds of light years from our earth, and thousands are also. For example, a bright star named Sirius is two hundred light years away; That is, it takes light, traveling at an unimaginable speed of 200 years to reach our eyes.
These are great suns, like us, perhaps huge mass of flammable gas; And each of them can be the center of the universe in which the planets revolve
Answer:
Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores.
OR
A star is a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity. Nuclear fusion reactions in its core support the star against gravity and produce photons and heat, as well as small amounts of heavier elements.
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