The Dawn of Summer is the season of new beginnings. It marks the start of twilight prior to sunrise, when the first rays of direct sunlight begin to fall on Earth. It is marked by the color of direct light being distributed evenly in Earth's air, even though the center of the Sun's disk has just reached 18 degrees below the horizon.
At this point, the Sun begins to gradually rise above the horizon by using energy from the stars' light to make it rise above the Earth's horizon by making use of the sun's altitude and distance from Earth. The sun rises over the horizon as Earth is illuminated by direct sunlight as well as by indirect sunlight. This is because direct sunlight is more evenly distributed by our atmosphere than indirect sunlight, so the sun begins to rise over the horizon at a greater distance. At the same time, the Earth begins to slowly move towards the Sun as it moves away from the direction where it is located.
When the Sun begins to rise above the horizon, Earth and all the celestial bodies can now be viewed by the naked eye. Many people will observe the sunrise from the western part of the country, while others may view it from the eastern part. The actual time of dawn varies, depending on the weather and the geographical location of Earth.
From the time of the Sun's rise until it begins to set, the Earth begins to slowly move away from the Sun as it slowly moves away from the equator. As the Earth slowly moves out of the path of the rising sun, its position in the sky is gradually shifted from the equator and eventually the poles. The Earth then gradually moves closer to the Sun and the light will eventually become weaker, until the Earth completely disappears from the horizon after it has passed the exact middle of the Sun. At this point, the Earth will slowly begin to move back into the path of the sun. As the Earth slowly moves back into the sunlight, Earth's distance from the sun also becomes smaller. At this time, the day turns into night and the sun is fully above the horizon again, and the solar radiation will cease to have an effect on the Earth.
If the Earth is facing the Sun, then the dawn time is known as morning. If the Earth is facing the other way, then the sun is called sunset.
In North America, the dawn of summer occurs around June 21st. and the dawn of winter occurs around December 19th. for most of the world. In Europe, the dawn of summer is marked with the summer solstice.