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The Hanle and Merak observatories in Ladakh recently captured photographs of a rare red aurora in the night sky.
What is Auroras:
- Auroras are patterns of bright lights in the sky that are seen when particles ejected by the sun interact with the magnetic field around the Earth.
- The phenomenon is usually visible closer to the poles.
Aurora Observations at Hanle and Merak:
- Auroras are typically observed near the poles, but this event was visible in India, closer to the equator.
- The Hanle observatory had previously recorded another aurora event on April 23 of the same year.
- Auroras are usually not visible in equatorial regions like India, but intense solar activities can occasionally make them visible in such areas.
- Researchers anticipate an increase in aurora events over the next couple of years due to the 11-year solar cycle. We are in the ascending phase of the cycle, with more solar flares expected before reaching the peak in 2025.
Hanle Observatory:
- It is Located in the Hanle village in Ladakh.
- The altitude and exceptionally clear skies make the Hanle Observatory the perfect place for astronomical observations and stargazing.
- Hanle also has a unique Dark Sky Reserve designated by the International Dark-Sky Association. Hanle is notable for being India's only dark sky reserve, a designated area where special measures are taken to reduce artificial light pollution. This makes it an ideal location for observing natural phenomena like auroras.
- The Hanle observatory successfully captured the auroral lights toward the northern horizon, but nearby mountains obstructed the view from the Merak observatory.
Merak Observatory:
- Merak Observatory is situated on the banks of Pangong Tso, known as the proposed site for the National Large Solar Telescope.
Indian Institute of Astrophysics:
- The Indian Institute of Astrophysics is a premier institute devoted to astronomy, astrophysics and related physics research.
- It traces its origins back to an observatory set up in 1786 at Madras, which, from 1792, began to function formally at its Nungambakkam premises as the Madras Observatory.
- In 1899, the observatory moved to Kodaikanal. In 1971, the Kodaikanal Observatory became an autonomous society, the Indian Institute of Astrophysics.
- The headquarters were shifted to Bengaluru into its present campus in Koramangala in 1975.
- Currently, funded by the Department of Science and Technology, the Institute ranks as a premier institution devoted to the country's research and education of astronomy and physics.
- The Institute's main observation facilities are Kodaikanal, Kavalur, Gauribidanur, and Hanle. The new high-altitude Indian Astronomical Observatory (IAO) at Hanle in south-eastern Ladakh has augmented the facilities for nighttime astronomy.
- Here, a 2-meter Himalayan Chandra Telescope was installed in 2001. A seven-unit High Altitude Gamma Ray (HAGAR) telescope operates at the Hanle site.