Asteroid photography

Asteroid photography involves using a telescope to capture images of asteroids as the earth turns. This method allowed for more precise calculation of asteroid orbits and helped Halsted discover the 323rd known asteroid and then 500 more in his life.
 Maximilian Franz Joseph Cornelius Wolf Germany 1891 Asteroid photography

Asteroid photography involves using a telescope to capture images of asteroids as the earth turns. This method allowed for more precise calculation of asteroid orbits and helped Halsted discover the 323rd known asteroid and then 500 more in his life.