BY: Jamie S. the Wonderful, Great, and Amazing. D2B2, Yellow Group, 30 Jan/2020
This is a gif of Solar Insolation in the year 2019, and each image is one month's data. Solar Insolation is the measure of how much sunlight is hitting each square meter of space. As shown by the key, the darkest color indicates the least amount of sunlight hitting that area. The factor that dictates how much sunlight hits a region is the Earth's tilt. The Earth is tilted at twenty-three and a half degrees, and because it rotates, some parts of our planet are tilted away from the Sun, meaning that area recieves less sunlight, and generally is colder that the rest of the world. In the gif above, a year of the Earth rotating is shown. When it becomes darker on the bottom of the image, that means that area is pointed away from the sun, recieving less light. To track what month it is, use the key to determine whether it is dark or light in a region, and if the sunlight is directly focused on the spot, or indirectly, meaning that it is either fall or spring there.