At the Pole, every day the sun moves in horizontal circles in the sky. The sun partially sets and rises again in a very short time. Places that are close to the Antarctic Circle experience unusual sunsets. The farther the place is from the equator, the slower is the sunset. The latitude of the place and thickness of the atmosphere is directly related to each other. The closer the place is to the equator, the faster the sunsets.Īlso as mentioned above while explaining the science behind sunsets, the atmosphere plays a significant part. The latitude of the place has a crucial role to play in the time taken by the sun to set.
The sun travels across the sky at a rate of 1 per 340 seconds as the earth rotates. The Sun takes approximately 150 to 200 seconds (2 to 3 minutes) to fully go below the horizon (once it has already touched the horizon). The time taken by the Sun to fully set depends on various factors such as the thickness of the atmosphere, time of the year, and latitude. The presence of clouds in the sky also results in phenomenal sunsets as these clouds become screens for the colors. You will find the best sunsets in fall and winter or in cold places where there is comparatively less moisture in the atmosphere. This movement of the sun towards the horizon makes the sky appear redder as only redder wavelengths are left behind while blues, greens, and oranges are left behind.
The wavelengths of light that are bluer in comparison to the other get scattered and only the red wavelengths reach our eyes. The sun’s light needs to pass through a denser layer of atmosphere to reach us when the sun starts to move towards the horizon. These changes in the colors are due to Earth’s atmosphere. There is a considerable drop in the brightness of the Sun. The color of the sun changes along with the color of the sky. We see many changes in the color of the sky as the sunset time draws nearer. Sunsets, also known as nightfall or dusk refers to the daily phenomena when the Sun disappears below the horizon this takes place due to the rotation of the earth. To understand the science behind sunsets, let us first understand what sunsets are. How Long Does The Sun Take To Fully Set?.
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