When shadows ‘ceased to exist'
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Nagpur: At 12.10pm on Monday, Nagpur experienced a celestial spectacle known as Zero Shadow Day, when the sun stood directly overhead and shadows weren't visible on the ground. This rare event occurs twice annually between the Tropics of Cancer and Capricorn.
Zero Shadow Day happens when the sun's declination aligns with a location's latitude, a result of Earth's 23.5-degree axial tilt. "This phenomenon beautifully demonstrates the interplay of Earth's tilt and its orbit around the sun," said Manoj Kumar Panda, project coordinator at Raman Science Centre & Planetarium, under the National Council of Science Museums, Ministry of Culture. "On this day, the sun is at its zenith, and objects stand shadowless at noon, captivating students and science enthusiasts alike," he said.
The Centre organised a workshop to engage students, showcasing the event's significance. At precisely 12.10 pm, participants observed the near absence of shadows, a moment that highlighted the sun's unique position. Unlike cities like Delhi or Srinagar, located beyond the Tropic of Cancer, Nagpur's latitude makes it ideal for this biannual event, with the next occurrence slated for July 17 at 12.20 pm.
The Raman Science Centre & Planetarium continues to inspire curiosity through such events, offering hands-on learning about celestial mechanics. Panda noted, "It's a reminder of how science connects us to the cosmos."
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When shadows ‘ceased to exist'
1 2 3 4 5 6 Nagpur: At 12.10pm on Monday, Nagpur experienced a celestial spectacle known as Zero Shadow Day, when the sun stood directly overhead and shadows weren't visible on the ground. This rare event occurs twice annually between the Tropics of Cancer and Capricorn. Zero Shadow Day happens when the sun's declination aligns with a location's latitude, a result of Earth's 23.5-degree axial tilt. "This phenomenon beautifully demonstrates the interplay of Earth's tilt and its orbit around the sun," said Manoj Kumar Panda, project coordinator at Raman Science Centre & Planetarium, under the National Council of Science Museums, Ministry of Culture. "On this day, the sun is at its zenith, and objects stand shadowless at noon, captivating students and science enthusiasts alike," he said. The Centre organised a workshop to engage students, showcasing the event's significance. At precisely 12.10 pm, participants observed the near absence of shadows, a moment that highlighted the sun's unique position. Unlike cities like Delhi or Srinagar, located beyond the Tropic of Cancer, Nagpur's latitude makes it ideal for this biannual event, with the next occurrence slated for July 17 at 12.20 pm. The Raman Science Centre & Planetarium continues to inspire curiosity through such events, offering hands-on learning about celestial mechanics. Panda noted, "It's a reminder of how science connects us to the cosmos."
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