From Earth, seven planets are visible in the sky on Friday night. According to astronomers, Mercury, Venus, Mars, Jupiter, Saturn, Arun and Varuna can be seen in the same line in the sky on the same day. Mercury, Venus, Mars, Jupiter, and Saturn are bright and can be seen with the naked eye.

But you need binoculars or a telescope to see Arun and Varuna. 6 planets can be seen from the earth in the clear sky of January and February. Planets Venus, Mars, Jupiter, Saturn, Arun and Varuna are visible in the sky . But on Thursday, all the seven planets are visible in the sky.

It is estimated that such an event can also affect our solar system . Scientists estimate that they can give new information about the position of the earth in the solar system.

The eight major planets of the solar system revolve on the same flat surface . But everyone's speed is different . Mercury, the closest planet to the Sun, completes one cycle in 88 days. Which is a Mercury year . Similarly, 1 year of the earth is 365 days. Similarly, Varuna, which is at the end of the solar system, takes 60,190 days to make one revolution of the sun. During this time, about 165 years pass on earth .

Due to the different motions of the planets, only occasionally do the planets come in approximately the same line on the same part of the Sun. As seen from Earth, if those orbits align, we can see many planets together in the night sky. This view is considered very rare. It is called 'Planetary Parade'.

According to Suresh Bhattarai, head of Nepal Astronomical Society (NASO), if the weather is clear, planets can be seen from Nepal. Planets can often be seen in the sky at different times and days, but it is rare to see all seven planets in one day. Although the information is spread that the planets are seen in the same line, which is wrong,' says Bhattarai, 'some planet is nearer to the sun, some is far away, so it is not possible for the planets to be seen in the same line, but they are seen at different times in the same day or night. We will also perform telescopes in Naso.' Jennifer Millard, an astronomer and science communicator from the UK's Fifth Star Lab, says that seeing a star or a planet with the eyes is of special importance. Seeing the planets with your own eyes has a special significance. You can go to Google and see attractive pictures of all the planets. In fact, seeing these planets or stars means that they have traveled millions or billions of miles of space and reached your eyes," she said.

'Will such an event affect the earth ? Can it increase our knowledge of the solar system?'' such questions keep coming up from time to time. In fact, Millard said that such an event would not have any effect on the earth. "Such incidents happen only by chance." The basis that such events can have an impact on the earth is very weak," she said.

However, in 2019, researchers said that the alignment of planets can affect solar activity. Frank Stefani, a physicist at the Helmholtz-Zentrum in Dresden-Rossendorf, Germany, said that Venus, Earth and Jupiter could be influenced by 'tidal forces'. According to Stephanie, since the tidal force of a planet is very low, it does not affect anything, but when two or more planets meet, it can affect the weather. Tidal force is the difference in gravity between two planets.

According to the National Aeronautics and Space Administration (NASA), the planets are not aligned. Actually the planets are very far from each other . But only when viewed from the earth, they seem to come in the same line .

Planets move slowly . Therefore, this 'planetary parade' can be seen for many days.

According to NASA, four/five planets can be seen on the same day in the sky every few years. Towards the end of next August, four planets can be seen in the sky at the same time.

By the end of October 2028, five planets can be seen . The next conjunction of five planets will happen towards the end of February 2034 . It is projected that all seven planets will be seen at the same time only in the year 2040.