The Solar System is the gravitationally bound system composed of the Sun and the objects that orbit it either directly or indirectly. The eight planets are the largest of the objects that directly orbit the Sun, with the rest being smaller objects like dwarf planets and small Solar System bodies. Here’s the brief explanation on solar system, all planets and their some specific information down below.
Mercury is the nearest planet to the sun.
- It has no water .
- It’s the hottest planet.
- It is spotted, early in the morning or soon after the sunset.
- Mercury has heavily cratered surface area. Surface temperature varies from 427°C to – 183°C.
- It’s period of rotation and period of revolution are 59 days and 88 days respectively.
- It’s density is 5.43gcm.
- It has a a rocky surface, large craters and mountains.
- It revolves around the sun faster than any other planet.
- It’s brown in colour.
It is the the second planet from the sun.
- Very is smaller than earth.
- It can be recognised easily.
- It’s atmosphere is made up of mostly carbon dioxide.
- Sunrise and sunset as seen the planet will be in the west and east direction respectively.
- It’s period of rotation is 243 days and it takes 225 days to go around the sun once.
- The day on Venus is longer than its year.
- It is the brightest planet in the solar system.
- It also known as morning star, silver Star and evening star..
- The temperature of Venus is less than that of mercury.
- It’s about 450°C .
- It’s due to greenhouse effect or warming in common language..
- Carbon dioxide blocks long wavelength infrared radiation and helt is trapped inside.
- The density of Venus is 5.2gcm.
Earth is the third planet in the solar system.
- Planet Earth is also known as natural satellite.
- It is the only planet which life is known to exist.
- Nearly, two-third of the Earth’s surface is covered with water.
- Earth has an atmosphere which extends to a height of a few hundreds of kilometres, through which we can not exactly define it’s boundary.
- The layers of atmosphere contain nitrogen, oxygen, carbon dioxide, water vapour and small quantities of other gases.
- Earth’s period of rotation is 24 hours and duration of earth’s revolution is 365 ¼ days.
- Earth’s density is about 5.51gcm.
- The day and year are a result of the earth’s movements.
- Life on Earth has become possible because of the suitable distance between the sun and the earth.
- The ideal climate, variety of soils, which supply food and water to the plants, suitable environment etc, which is present on the earth.
- Hence, We can say that Earth is a Marvelous planet.
Mars is the fourth planet in the solar system.
- It is reddish planet.
- Spacecrafts like Viking have explored Mars for evidence of life.
- It’s red soil is formed because of iron oxide.
- It has huge volcanic craters, giant canyons and canals.
- The canals are now as dry as dust.
- It looks like a desert.
- Some places in Mars have moderate Temperature.
- Mars has oxygen, nitrogen and water.
- It has frozen carbon dioxide near the poles which looks like ice caps.
- Mars has two natural satellites called Phobos and Deimos.
- The average surface temperature varies from-60°C – +25°C.
- The period of rotation is about 24 &1/2 hours.
- It’s period of revolution is 687 days.
Jupiter is the fifth planet.
- (planet)Jupiter is the largest planet in the solar system.
- It’s orbital period is nearly 12 years.
- It’s day about 10 hours. That means it rotates very fast.
- Due to fast rotation it is bulged at the equator and flattened at the poles.
- It is a gas gaint planet.
- The thick gas clouds which cover the planet due to its strong gravitational force also rotate with the planet resulting in bands and zones.
- It’s 100 times bigger than the earth.
- It has a great Red Spot.
- It is three times the size of the earth.
- There are thin icy and dusty rings around this planet.
- Galileo identified four satellites of Jupiter using a telescope built by himself.
- They are lo, Europa, Ganymede and Callisto.
- There are many other satellites of Jupiter.
- IO, is an interesting satellite because it has active volcanoes.
- Voyager space craft discovered a ring system around the planet.
- Europa has the possibilities of some type of life.
- It emits radio signals.
It is the sixth planet from the sun.
- It is the second largest planet in the solar system after Jupiter.
- Also It is also made up of gases.
- It has thousands of rings of ice, rocks and dust.
- It looks very beautiful and attractive.
- It’s a fascinating experience to view this planet using a telescope.
- It’s special features is a prominent ring system, which is made up of many small ringlets.
- Its specific gravity is less than that of water.
- It has many satellites of which Titan is of special interest.
- It’s the only natural satellite which has its own atmosphere in the solar system.
- It has the lowest density when compared to other planets.
- It’s period of rotation and revolution are 10 hours and 40 minutes and 29.46years respectively.
Uranus is the seventh planet in the solar system.
- It is the third largest planet.
- A ring system around this planet was discovered by Prof.J.C.Bhattacharya and K.Kuppuswamy of Indian institute of Astrophysics, Bengaluru.
- The planet was first discovered by William Herschel.
- It is a peculiar planet because it’s axis of rotation has a tilt of about 82°.
- Except Venus all the planets rotate from West to east with some tilt.
- A globe will help you to compare the axis of rotation of Uranus with the axis of rotation of the earth.
- It’s period of rotation and revolution are about 17 hours and 84 years respectively.
- Thi planet appears to rotate on a horizontal axis.
- It is also made up of gases.
- It is seen as a blue- geen disc.
- Also It has rings, which are opaque.
- It is covered by the thick clouds.
- It s density is of 1.39g/cm3.
It Is the eighth planet from the sun.
- It’s composition is similar to that of Uranus.
- Neptune can be seen only with the help of a telescope.
- Earlier its existence was predicted by mathematical calculations.
- It’s colour is bright blue.
- It is one of the coldest planet in the solar system.
- It’s period of rotation and revolution are 16 hours 30 minutes and about 165 years respectively.
- It’s density is 1.6g/cm3.
Pluto is the last planet that was considered till 2006 in the solar system.
- But in 2006 the International Astronomical Union (IAU) adopted a new definition for a planet and according to this Pluto does not qualify as a planet of the solar system.
- However it continues to be a member of the solar system.
- Now it’s called as dwarf planet.