Universe And Solar System (Part-1)

1. Hydrogen has just one proton and one electron.
2. It's the only element without a neutron.
3. The simplest form of the element makes it abundant in the universe

He was the first to say that the Sun is at the center of the Solar System, while all the planets, including the Earth revolve around it.

Asteroids are rocky fragments left aver from the formation of the solar system about 4.6 Million years ago. The fourth planet is Mars and the fifth one is Jupiter.

During the perihelion phenomenon, the distance between the Earth and the Sun is minimum ie, about 147 million km.

Hence, it is an example of a non-luminous object.

Instead, the Moon shines because of the light reflected from the Sun

1. The moon completes one rotation on its axis as it completes one revolution around the Earth.
2. This is why we always see the same side of the moon facing Earth.
3. The time taken by the moon to complete one rotation on its axis is approximately 27.3 days, which is also the same amount of time it takes to complete one orbit around the Earth.

Limnology is the study of internal water sources (lakes, reservoirs, rivers, etc.).

It experiences a very high temperature, about one million degrees Celsius.

It starts at about 2100 km above the photosphere.

The Corona isn't visible from the earth (except during solar eclipses). The Corona does not have an upper limit.

It experiences a very high temperature, about one million degrees Celsius.

It starts at about 2100 km above the photosphere.

The Corona isn't visible from the earth (except during solar eclipses). The Corona does not have an upper limit.