David Jackson, a British photographer, uses a technique called stereographic projection to turn landscapes and familiar landmarks into mini planets. Stereographic projection is a form of digital processing that shows a 360-degree spherical panorama as a flat image.
The planet is the result of projecting the panorama. David explains: “Every mini planet is made up of up to 100 photographs, but most tend to be around 50-60 photos. The challenge is in finding the perfect spot, to capture the surroundings without over-emphasizing some features to the detriment of the rest of the image. The image taking can be done in less than 10 minutes. Care needs to be taken in the order of images taken and keeping a good overlap between the images. The computer work is the time-consuming part and can take up to a day per image. The finished mini-planet is a real representation of everything you would see in that location if you were standing in the middle of the image.” [source]