NASA's astronaut Reid Wiseman took this picture from the Orion spacecraft during the Artemis II mission:
It was taken with a Nikon D5 FF camera and a focal length of 22mm. With such a wide angle lens, the picture for sure was taken very close to Earth, so I wanted to estimate this distance. By comparing the ratio between the Earth's diameter in the picture and the whole frame diagonal, we can apply some math to have it:
The distance obtained is:
9.889km, indeed close to the Earth which has a radius of 6.371km. These are the calculated values of distance and camera FOV:
NASA's own CGI animation seems to match this result:
More detailedly:
https://www.overfitting.net/2026/04/a-que-distancia-de-la-tierra-se-hizo-la.htmlRegards
