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Mangaluru, Apr 23: An astronomical phenomenon, ‘Zero Shadow Day', will be observed in Mangaluru on April 24 and in Udupi on April 25. 

According to a press release from Poornaprajna Amateur Astronomers’ Club, the wonder will commence and people will see their shadows disappear for a few moments at 12:28 pm.

The phenomenon is called as Zero Shadow Day. If a person takes a candle in a dark room and use it to create a shadow of one’s palm on the wall, the hand will cast shadow on the wall as one moves the hand. But when one places the palm on the wall, there will be no shadow.

In the phenomenon, the sun at these times shines exactly above the heads on these days. In astronomy, this point is called as Zenith. The point in the sky directly above an observer at any given location. So it is quite clear now that on Zero Shadow Day, the sun passes through the Zenith as a result of which, all objects will have minimal or no shadow if they are on the ground.

The reason for this happens on some specific days is concerned with astronomy. The earth spins around on its own axis and causes days and nights. It also revolves around the sun causing a year. But the seasons are caused because the axis is tilted at an angle of 23.5 degrees. It is because of this tilt that the sun rises every day in the east gradually moving towards the north till June 21st and then slowly proceeding towards the south till December 21st every year. “We call these days solstice. This means the sun shines between the Tropic of Cancer and Tropic of Capricorn every day passing by the equator on the days we call equinox,” the release stated.

As the earth moves around the sun and revolves on its own axis, for all the people between Tropic of Cancer and Tropic of Capricorn, the Sun at noon moves father and closer to the zenith passing through zenith twice causing two Zero Shadow Days per year. People at Mangaluru will observe this on April 24 and August 18 every year and People in Udupi will observe this on April 25 and August 17 every year.

Places with same latitudes will observe the same days of Zero Shadow but the time would vary with longitude. For example, people of Bengaluru as they share the latitude with Mangaluru will also observe it on April 24. While the people of Mangaluru will observe their shadows disappear at 12.28pm, people of Bengaluru will observe this at 12:17pm. Places like Moodabidri, Bantwal, Sakleshpur and Hassan will also observe Zero Shadow on April 24.

Places like Brahmavar, Karkala, Sringeri, Kudremukha, Chikkamagaluru will observe the Zero Shadow Day on the same day as Udupi on April 25.

Bengaluru, May 15: With lockdown-3 coming to an end in a couple of days, Karnataka Chief Minister B S Yediyurappa on Friday expressed confidence about the Centre announcing relaxation to "many things" after May 17.

"After May 17, the government of India is going to relax so many things, let us wait for it," he said in response to a question from reporters here. "According to me they (centre) will relax everything.... maybe for things like five-star hotels and others they may not give permission for the time being, but for other things they are going to give permission. Let's wait and see."

The nationwide lockdown was initially imposed from March 25 to April 14, then extended to May 3 and again to May 17 to prevent the spread of the novel coronavirus. Karnataka Tourism Minister C T Ravi on Wednesday had hinted at the state government permitting the opening of gyms, fitness centres and golf courses, also certain hotels for local tourism purpose after May 17, when the third phase of the COVID-19 induced lockdown comes to an end.

The Muzrai department (in charge of the administration of temples) was also planning to have a Standard Operating Procedure (SOP) in place, that needs to be followed at temples once they are opened for the public, officials have said. They said the opening of temples for the public is however subject to the MHA (Ministry of Home Affairs) guidelines.

During the recent video conferencing Prime Minister Narendra Modi had with Chief Ministers of various states, Yediyurappa had proposed doing away with district wise colour-coding and instead advocated strict cordoning of containment zones to control the spread of the pandemic.

He had pitched for resuming all economic activities in stand-alone establishments while continuing the restrictions on malls, cinema halls, dining facilities and establishments with centrally controlled air-conditioning. The CM had suggested that 50 to 100 meters around known clusters be declared as containment zones and commercial activities, including public transport, to be allowed in non- containment zones.