SSC Selection Post 2025 PYQ — Question 13

Correct Answer

At the Sun-Earth L1 point in a halo orbit

Explanation

India's first solar mission, Aditya-L1, is placed in a halo orbit around the Lagrange point 1 (L1) of the Sun-Earth system, which is located about 1.5 million kilometers from Earth. This strategic positioning allows the spacecraft to continuously view the Sun without any occultation or eclipses, providing a major advantage in observing solar activities in real-time.

Key Points

The Lagrange Point 1 (L1) is a gravitationally stable point in space where the gravitational pull of two large masses like the Sun and the Earth balances out perfectly.

Being at L1 ensures uninterrupted monitoring of the Sun's corona, solar wind, and coronal mass ejections without any planetary interference or eclipse obstacles.

The primary mission objective is to study the physics and dynamics of the Sun's upper atmosphere, specifically the chromosphere and corona.

Important Questions and Answers

Question: What is the distance of the Sun-Earth L1 point from the Earth?

Answer: The L1 point is located approximately 1.5 million kilometers away from the Earth.

Question: Which space agency launched the Aditya-L1 mission?

Answer: The Aditya-L1 mission was successfully launched by the Indian Space Research Organisation (ISRO).