Astronomy Part-6


At the time of the evening you will see a very bright star in the sky. This star also appears in the morning. It is called a star of dawn. But not the star, but the planet closest to the planet Venus. On the telescope, Venus looks like our moon. This is the brightest planet.

The second planet from the Sun and the closest planet from Earth.
The most brilliant planet is called. Because it appears in the East in the east and in the west.
The longest day and night are the most.
Earth is called twin sister because it is equal to the earth in the shape and mass and in the same form.
The density of the air mass is about 15 times the Earth’s atmosphere.
Several new facts have been revealed in connection with Venus by Space Probes. Venus is the most hot planet. Its temperature reaches 480 ° C on the equator. At this temperature, the ladders, tin and zinc are all melted. Clouds on our Earth are more than 15 km Go upstairs, but the clouds of Venus 55 km Reach the height. The temperature of the clouds of Venus on the upper surface decreases to 35 ° C. This red-hot planet is wrapped with clouds of snow.

Venus has 90-95 percent carbon dioxide in the atmosphere. There is also some hydrogen and water vapor. Its pressure is 100 times greater than the pressure of the Earth’s atmosphere. Astronauts can not survive in the air of Venus and can not survive the heat there.

It is known by the radio waves that there are mountains and valleys on Venus. It has no satellite. Sun on this planet rises in the west and drops in the east.

Venus statistical data
Average distance from Sun 0.72 au
The nearest distance to Earth is 0.27 au
One day of the planet Earth 243 days
One year of planet Earth 224.7 days
Diameter 12,104 km
Mass mass of 0.82 times the mass
Surface temperature of 480 ° C
Gravitational 0.88 compared to Earth
Density 5.25 on the basis of water
Atmospheric gas major carbon dioxide


The earth, on which we live, is the third planet of the Sun’s family. This is the only planet in the solar system on which life has its existence. Like other planets, it is also circling the sun. The Earth is also smeared on its axis One end of this axis is called the North Pole and the other is the South Pole. On half of the Earth where there is sunlight, there is a summer season and the other part is cold in these days. Thus, the weather on Earth keeps changing.

Earth (Blue Planet)

Earth is the fifth in size.
Earth in shape and texture is similar to Venus.
When seen from space, the color of the earth looks blue due to water and atmosphere.
The only satellite of the Earth is the Moon.
In 1961, the Soviet astronaut, Yuri Gagarin revolve around the earth at the space shuttle, Vostov and saw the Earth from space. Looking at the Earth from space or moon, the green space and blue waters of ocean are seen, just as it is shown on the globe. Many parts of the earth are not visible from space due to being hidden beneath the white clouds.

The only satellite on Earth is the moon, which revolves around the Earth. Actually all satellites revolve around their planet.

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