ISRO chief S. Somnath said Aditya L-1 mission is to study the Sun. It will take another 125 days to travel from Earth to the L-1 point, from where the satellite will observe the Sun.
सूर्य के मिशन पर आज निकलेगा आदित्य- एल 1 लॉन्च की तैयारी पूरी
After the success of Chandrayaan-3 mission, India is going to step towards the Sun mission today. Indian Space Research Organization (ISRO) will launch the first solar mission today. Aditya L-1 will fly into space today at 11:50 am from Sriharikota’s launching pad.
ISRO chairman S. Somnath offered prayers at the Chengalamma Parameshwari temple near the Satish Dhawan Space Center in Sriharikota for the success of the Sun mission. After offering prayers, he said, “I have come to pray to Chengalamma Parameshwari to make this launch a success and give us strength.”
S. Somnath said it would take about an hour for the satellite to reach the required location and inject. Aditya L-1 mission is to study the Sun. It will take another 125 days to travel from Earth to the L-1 point, from where the satellite will observe the Sun.
ISRO said that Aditya-L1 will be carried by the Indian rocket PSLV-XL. Initially, Aditya-L1 will be placed in low earth orbit. Later, its orbit will be gradually upgraded, and eventually it will start traveling out of the Earth’s gravitational field towards the L-1 point closer to the Sun.
The journey from launch to L1 will take Aditya-L1 approximately four months and the distance from Earth will be approximately 15 lakh km. ISRO said, “The satellite placed in corona orbit around the L1 point has the major advantage of continuously observing the Sun without any eclipse. This will make it possible to study solar activities and its impact on space weather in real time.”
According to ISRO, the spacecraft will carry seven payloads to observe the photosphere, chromosphere and the outermost layers (corona) of the Sun using electromagnetic and particle and magnetic field detectors.
“Four payloads will be directly insolation using the special vantage point L1 and the remaining three payloads will study the particles and fields at the Lagrange point L1,” the agency said.
The mission is expected to provide information on coronal heating, coronal mass ejection, pre-flare and flare activities and their characteristics, space weather dynamics, particle and field propagation and others, most important for understanding the Indian space problem.
The Indian space agency said the Sun is estimated to be 4.5 billion years old and is a hot glowing ball of hydrogen and helium gases that is the source of energy for the solar system. The Sun’s gravity holds all the objects in the solar system together. In the central region of the Sun, known as the ‘core’, temperatures can reach up to 150 million degrees Celsius.”
At this temperature a process called nuclear fusion occurs in the core which provides energy to the Sun. ISRO said the visible surface of the Sun, known as the photosphere, is relatively cool and has a temperature of about 5,500 degrees Celsius.
The Sun is the nearest star and hence can be studied in more detail than other stars. ISRO said, by studying the Sun, we can learn a lot about the stars of our own galaxy as well as the stars of various other galaxies.
Follow Us on… 
