Researchers studied the sun’s rotation by tracking the sun’s spots in century-old digital film and photos.
Solar Rotation Kodaikanal Solar Observatory
26 February 2021 Current Affairs:The digitized data of the Kodaikanal Solar Observatory detected the rotation of the sun over the past century.
♦ Researchers led by a PhD. students from Aryabhatta Institute for Observational Sciences (ARIES), the Autonomous Research Institute under the Department of Science and Technology (DST), Govt. of India.
♦ A collaborator from the Max Planck Institute for Solar System Research in Goettingen, Germany.
♦ Collaborator of the Boulder Southwest Research Institute, USA.
♦ Researchers studied the sun’s rotation by tracking the sun’s spots in century-old digital film and photos.
♦ The old flims and photos were taken at Kodaikanal Solar Observatory (KoSO) at the Indian Institute of Astrophysics (Bengaluru).
♦ This estimate will help to study the magnetic field generated inside the sun, which can cause sunspots and lead to extreme situations, such as the mini- ice age (no sunspots) in the history of the earth.
♦ It can also help predict the future solar cycle and its changes