Longest day and shortest night in India 2025: The reason for the youngest night on 21 June is the Earth’s inclination over its axis and its orbit around the sun. This is called summer solstice. Detailed reasons are being given here regarding this article …Also Read: The longest day of the year on 21 June, know the reason and importance
1. Axial Tilt of Earth: Our earth does not rotate directly on its axis, but it is about 23.5 degrees bent from the bottom of its orbit. This inclination is the main reason for changing seasons on Earth.
2. Maximum inclination towards the sun: When the Earth travels its annual journey around the Sun, around 21 June, the Northern Hemisphere is the most tilted towards the Sun. At this time, the rays of the sun fall directly on the Tropic of Cancer, which is located 23.5 degrees north of the equator and also passes through the middle of India. Due to this inclination, the rays of the sun fall from different angles on different parts of the Earth throughout the year.Also Read: 21 June: International Yoga and Music Day, know its 3 special things
3. Straight rays and long paths of the sun:
– Sun rays are straight and more concentrated in the northern hemisphere.
– The Sun occurs at its highest point in the sky, and it forms a long arc in the sky during the day.
– This means that the Sun remains above the horizon for a long time, which makes the longest period of day.
– In countries of North Hemisphere like India, June 21 is the highest time of day (about 13.5 to 14 hours).
4. Results: Short nights: Since the period of day is the longest, naturally, the night period becomes the smallest. This phenomenon is seen at all places in the Northern Hemisphere, although the longer the north of the equator, the day the day will be as long and the night will be as short. At some places above the Arctic circle, the sun appears for 24 hours, which is called ‘midnight sun’. In contrast, at the same time i.e. June 21, there is a winter solstice in the Southern Hemisphere, where the day is the youngest and the longest night, as that part is bent away from the sun.
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