SUMMER SOLSTICE & WINTER SOLSTICE

PRERNA FOR IAS

SUMMER SOLSTICE & WINTER SOLSTICE

1. Summer Solstice

The Summer Solstice is an important astronomical event that occurs around June 20–21 in the Northern Hemisphere. On this day, the North Pole is tilted most directly toward the Sun, causing the Sun to appear at its highest position in the sky at noon. As a result, the Northern Hemisphere experiences its longest day and shortest night of the year. The Summer Solstice marks the beginning of astronomical summer and brings the maximum amount of daylight. Regions closer to the Arctic Circle may even experience the “Midnight Sun,” where the Sun remains visible for twenty-four hours or longer.

2. Winter Solstice

The Winter Solstice occurs around December 21–22 in the Northern Hemisphere. During this event, the North Pole is tilted away from the Sun, causing sunlight to strike the hemisphere at a lower angle. Consequently, it is the shortest day and longest night of the year. The Sun appears at its lowest position in the sky at noon. The Winter Solstice marks the beginning of astronomical winter and signals reduced daylight hours. Although it is the coldest season in many regions, after the solstice the length of daylight gradually increases. Many cultures celebrate festivals and traditions associated with this event.

3. Why Do Solstices Happen?

Solstices occur because the Earth's rotational axis is tilted at approximately 23.5 degrees relative to its orbit around the Sun. As Earth revolves around the Sun, different hemispheres receive varying amounts of sunlight throughout the year. When one hemisphere is tilted toward the Sun, it receives more direct sunlight and experiences summer. When it is tilted away, it receives less direct sunlight and experiences winter. The Summer and Winter Solstices represent the extreme points of daylight and darkness during the year. These events are natural consequences of Earth's tilt and revolution and play a major role in seasonal changes.

4. Summer Solstice and Earth’s Position