India established the world’s first liquid-mirror telescope to track space debris and asteroids

India has built the country’s first liquid mirror telescope, which will detect transitory and variable objects like supernovae, gravitational lenses, space debris, and asteroids. The largest telescope in Asia has been installed in Devasthal, a hill in Uttarakhand.
The observatory is located at the Devasthal Observatory site of the Aryabhatta Research Institute of Observational Sciences, at 2450 metres (ARIES). Prof. Dipankar Banerjee, Director of ARIES, remarked, “ILMT is the first liquid-mirror telescope developed solely for astronomical studies and placed at the Devasthal Observatory of ARIES.”
The telescope will aid in surveying the sky, allowing observers to see numerous galaxies and other celestial sources just by staring at the strip of sky passing overhead. Scientists from India, Belgium, and Canada collaborated on the observatory, which uses a 4-meter-diameter rotating mirror comprised of a thin sheet of liquid mercury to gather and focus light.
Scientists shaped the surface of a pool of mercury into a parabolic form, which is great for focussing light. The mercury is shielded from the wind by a thin mylar layer. The reflected light is processed by a multi-lens optical corrector, which creates sharp images across a wide field of vision.
Meanwhile, the photos are captured by a large-format electronic camera situated at the focus.
Prof. Paul Hickson (University of British Columbia, Canada), an expert on liquid mirror technology, explained, “The globe’s rotation causes the images to wander across the sensor, but this motion is controlled electrically by the camera.” This method of operation improves the telescope’s observing efficiency and makes it more sensitive to faint and hazy objects. “
The ILMT and the Devasthal Optical Telescope, both four-meter class telescopes, are now located at Devasthal Observatory (DOT). Both telescopes have the greatest apertures accessible in the country. Prof. Dipankar Banerjee is excited about using Big Data and Artificial Intelligence/Machine Learning (AI/ML) algorithms to identify the things seen with the ILMT.
“The amount of data generated by the ILMT study will be outstanding. Several young researchers will be working on various science programmes using the ILMT data in the future.” ILMT’s Project Investigator, Dr. Kuntal Misra, stated that experts also predicted that once regular science operations start later this year, the ILMT will generate roughly 10 GB of data per night, which will be promptly processed discover variable and transient stellar sources.