This is India’s first Solar Space Mission that will launch in 2023 as confirmed by Indian Space & Research Organization(ISRO). The spacecraft shall be placed in a halo orbit around the Lagrange point 1 (L1) of the Sun-Earth system, which is about 1.5 million km from the Earth. It will carry 7 payloads to observe the photosphere, chromosphere and the outermost layers of the Sun (the corona) using electromagnetic and particle and magnetic field detectors. Lagrangian points, which were discovered by Mathematician Joseph Louis Lagrange. L-1 lies 1.5 million kilometres inside the Earth’s orbit, partway between the Sun and the Earth. Lagrangian points are where all the gravitational forces acting between two objects cancel each other out and therefore can be used by spacecraft to ‘hover’.
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