Sun Mission / Countdown of Aditya-L1 begins, it will reach close to the sun after covering a distance of 15 lakh KM.

Sun Mission: After the successful landing of Chandrayaan-3 on the lunar surface, all eyes are now on the Sun Mission Aditya L1 (Aditya-L1). Its countdown has started. ISRO's Aditya L1 mission will be launched from the Satish Dhawan Space Center in Sri Harikota at 11.50 am on Saturday. For this, the countdown of 23 hours 40 minutes started today at 12:10. This means that this mission is ready for launch. This mission will be launched through ISRO's most reliable rocket Polar Satellite Launch Vehicle ie PSLV rocket.

It will take 4 months to complete the journey

The PSLV-C57 rocket will first place the Aditya L1 mission in a Low Earth Orbit near the Earth in an orbit of 235KM X 19500KM, from where it will be raised on a journey of 1.5 million kilometers towards the Sun. This journey will take approximately 4 months to complete. Aditya L1 mission will be established at L1 point 15 lakh KM away from the earth. Now that the countdown has begun, the rocket will undergo four stages of refueling over the next 24 hours. After this, all the parameters related to the satellite's communication system, rocket, range and tracking stations will be checked, after which the Aditya L1 mission will be launched through an automatic launch sequence.

Surya also has a name Aditya

Its purpose is known from the name of the mission 'Aditya L1'. Sun also has a name Aditya and L1 means- Lagrange point 1. According to ISRO, the distance of L1 point is about 1.5 million (1.5 million) kilometers from the Earth. The Sun will be studied by placing Aditya-L1 in the coronal orbit of the L1 point. There are five Lagrange points in this system including the Earth, the Sun and the Moon. They are named after the Italian-French mathematician Joseph Louis Lagrange. These are said to be points where the gravitational pull of two large bodies, such as the Sun and Earth, provides parking space-like areas in space.

Will be able to keep an eye on the sun all the time

This means that the Sun-Earth gravity at the Lagrange point is balanced in such a way that something can stay there for a long time, that's why Aditya-L1 will be launched to establish itself at the Lagrange point 1, from where it will Will be able to study by keeping an eye on the Sun all the time. It will also collect information about the local environment. According to ISRO, Aditya-L1 will carry seven payloads to study different layers of the Sun. These payloads in the spacecraft will study the photosphere, chromosphere and the corona, the outermost layer of the Sun, with the help of electromagnetic, particle and magnetic field detectors. According to ISRO, four of the seven payloads will study the Sun directly and the remaining three will study particles and fields in-situ at L1. With this, an important scientific study of the diffusion effect of solar dynamics in the interplanetary (interplanetary) medium will be possible.

What is the specialty of the mission?

Like Chandrayaan-3 mission, Aditya mission will also be launched. It will first make a few revolutions in the Earth's orbit. After which, it will reach L-1 point after traveling about 15 lakh kms. Circling at this point, Aditya-L1 will investigate about the outermost layer of the Sun.

Like every time, this time also India has set a new record in its space mission. Compared to the Sun mission of other countries, India has prepared it in a very low budget. Aditya's cost is Rs 400 crore. The total expenditure of Rs 12,300 crore was incurred in the mission sent by NASA.

What is the purpose of the mission

Under this mission, ISRO will investigate the atmosphere around the Sun. Apart from this, flares coming out of the Sun, chromospheric and coronal heating will also be studied. How is the air around the Sun and will also investigate its structure. Let us tell you that the Sun is 109 times bigger than the Earth. According to reports, the temperature inside the Sun is about 14.99 lakh degrees, while the temperature of its outer surface is 5507 degrees Celsius.