Solar System: Meaning
We all know that we live on Earth and Earth is a part of our solar system. Earth is one of the planets of solar system. Solar system is the system of sun around which many planets, stars, constellation revolves around. Solar system consists of eight planets they are - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Sun:
It is the largest star of solar system, known as parent of solar system. It is made up of very hot gasses and only source of light and heat for earth as well as for the Whole solar system.
Planets:
Planet is a large body having mass, elliptical shape which revolves around a star. Following are the planets in our solar system.
Mercury:
It is the nearest planet to the sun and one of the hottest planets in the solar system. It spins fastest around the sun in comparison to other planets.
Venus:
This is the only planet that rotates in the opposite direction. Here climate is very thick and only 20% sunlight falls. Clouds are made of sulphuric acid and sun rises from west and sets in the east.
Earth:
Only planet that supports life and also known as blue planet.
Mars:
This planet is red in color because of red soil found here. Highest volcano of the solar system (Olympus Mons) found here.
Jupiter:
It is the fifth planet from the sun and one of the largest planets of the solar system.it is made up of metallic hydrogen and is four times of earths diameter.
Saturn:
It is the sixth and second largest planet of solar system. It has thousands of rings around it and this planet can be seen with a naked eye from the earth.
Uranus:
It is the 7th planet in the solar system and appear green in color due to the presence of mixture of hydrogen, helium and methane gas in its atmosphere.
Neptune:
It is the 8th planet and farthest from the sun.
Eclipses:
An eclipse is a phenomenon takes place when earth or moon passes through the shadow of another planet. Eclipses are of two types:
1. Solar Eclipse: Solar eclipse occurs when the sun, moon and earth are nearly aligned in the same straight line thus blocking the light of sun by the moon. The blocking of suns light may be partial or complete. Solar eclipse may be occurred between sunrise and sunset at new moon day.
2. Lunar eclipse: This phenomenon occurs when the moon passes behind the earth or its shadow. Thus, the shadow of the earth blocks the sunlight to falls upon the moon. This may also be total or partial eclipse. This may occur on full moon day.
Solstice:
Solstice occurs when sun appears to reach its most northerly or southerly point. Solstice may be occurred two times a year.
1. Summer solstice: When sun shines vertically over the Tropic of Cancer is called summer solstice. It is occurred 21 June every year. The sun is directly overhead at 23.5o North.
2. Winter solstice: When the sun is directly overhead at 23.5o S. during winter solstice sun shines vertically over the tropic of Capricorn. It occurs on 22 December every year.
Thanks
BYJU'S Exam Prep Team
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