Sunrise and Sunset
Because of the angle it makes with the earth, the sun is at sunrise and sunset as it travels longer in the atmosphere before reaching the earth. In other words, it travels a greater distance in the atmosphere. A long journey means that wavelengths of the spectrum are shorter and are increasingly distributed, leaving the wavelengths of red, orange or yellow that reflects on the clouds. Almost pure atmosphere gives us an orange sunset. Different colors depend on individual particles in the atmosphere and clouds that bounce sunlight at different angles. The orange and red sunsets are intensified by pollution, as well as ash, and smoke released by volcanic eruptions.
In the tropics, the sunsets are very short because the sun follows a path nearly perpendicular to the horizon. In summer, it further away from the equator, the sunsets last a long time because the sun is at an angle below the horizon. There are sleepless nights when arriving sunsets and sunrises last so long that they overlap. Why is it dark sky above our heads and bright where the sun disappears below the horizon about an hour after sunset? This is because the light is scattered by the dust that it is in the upper atmosphere. There is more dust in the air as the more scattered light occupies a broad band above the horizon at sunset or sunrise.
When the sky is cloudless, the crepuscular rays are very pure. Color changes to pink and yellow or yellowish-gray to signify an increase in dust in the atmosphere and humidity. The clouds are, for their part, especially contrasting colors they are low in the sky.
The time of sunrise and sunset varies depending on the day and place. To calculate the exact time it takes into account the refraction of sunlight through the atmosphere. This is due to the deflection of light, we can already see the sun's rays while they are still 34 minutes of arc below the horizon. When the center of the solar disk, which itself has a diameter of 32 ', is still 50' below the horizon, we can already see its upper edge. Therefore, in the days of March 21, there is the beginning of spring, and September 23, it's about the beginning of autumn. It has become easier to calculate sunset and sunrise with the help of sunset app.
Twilight is the time interval between the evening sunset and when the sun is at a certain number of degrees below the horizon. The morning twilight is the time interval between the moment when the Sun is still a few degrees below the horizon and the sunrise. At night or morning of civil twilight, it is not yet very dark. This is why it is possible to read a normal text characters outdoors during civil twilight, turning back to the place in the morning or in the evening. It goes without saying that the local weather conditions and the presence of moonlight influence visibility.
In the tropics, the sunsets are very short because the sun follows a path nearly perpendicular to the horizon. In summer, it further away from the equator, the sunsets last a long time because the sun is at an angle below the horizon. There are sleepless nights when arriving sunsets and sunrises last so long that they overlap. Why is it dark sky above our heads and bright where the sun disappears below the horizon about an hour after sunset? This is because the light is scattered by the dust that it is in the upper atmosphere. There is more dust in the air as the more scattered light occupies a broad band above the horizon at sunset or sunrise.
When the sky is cloudless, the crepuscular rays are very pure. Color changes to pink and yellow or yellowish-gray to signify an increase in dust in the atmosphere and humidity. The clouds are, for their part, especially contrasting colors they are low in the sky.
The time of sunrise and sunset varies depending on the day and place. To calculate the exact time it takes into account the refraction of sunlight through the atmosphere. This is due to the deflection of light, we can already see the sun's rays while they are still 34 minutes of arc below the horizon. When the center of the solar disk, which itself has a diameter of 32 ', is still 50' below the horizon, we can already see its upper edge. Therefore, in the days of March 21, there is the beginning of spring, and September 23, it's about the beginning of autumn. It has become easier to calculate sunset and sunrise with the help of sunset app.
Twilight is the time interval between the evening sunset and when the sun is at a certain number of degrees below the horizon. The morning twilight is the time interval between the moment when the Sun is still a few degrees below the horizon and the sunrise. At night or morning of civil twilight, it is not yet very dark. This is why it is possible to read a normal text characters outdoors during civil twilight, turning back to the place in the morning or in the evening. It goes without saying that the local weather conditions and the presence of moonlight influence visibility.
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