Lost comet Comet Shoemaker–Levy 9, which collided with Jupiter in 1994. Lost comet A comet is "lost" when it has been missed at its most recent perihelion passage. This generally happens when data is insufficient to reliably calculate the comet's orbit and predict its location. The "D/" designation is used for a periodic comet that no longer exists or is deemed to have disappeared. Lost comets can be compared to lost minor planets, although calculation of comet orbits differs because of nongravitational forces, such as emission of jets of gas from the nucleus. Some astronomers have specialized in this area, such as
The Shoemaker and the Elves (film) The Shoemaker and the Elves (film) The Shoemaker and the Elves is a 1935 Color Rhapsodies short directed by Arthur Davis. It concerns a poor shoemaker who gives a little boy shelter from a storm. A homeless waif, staggering through a roaring snow storm, wanders into a small town and no one except a poor shoemaker will give the little boy shelter from the storm. That night, the elves come in with their equipment and material, and make a new supply of shoes for the old man. In the morning, seeing what has happened, the old man tells the boy