Mercury (planet) three weeks, the Sun is almost stationary overhead, and is at its most brilliant because Mercury is at perihelion, its closest to the Sun. This prolonged exposure to the Sun at its brightest makes these two points the hottest places on Mercury. Conversely, there are two other points on the equator, 90 degrees of longitude apart from the first ones, where the Sun passes overhead only when the planet is at aphelion in alternate years, when the apparent motion of the Sun in Mercury's sky is relatively rapid. These points, which are the ones on the equator where the apparent
Arrow to the Sun Arrow to the Sun Arrow to the Sun is a 1973 short film and a 1974 book, both by Gerald McDermott. The book was printed in gouache and ink, and won the 1975 Caldecott Medal for illustration. Both media are a retelling of a Pueblo tale, specifically an Acoma Pueblo tale, in which a mysterious boy seeks his father. The Boy (who does not have a name) is the son of the Sun lord, who sends the spark of life into a maiden of the Pueblo. He is ridiculed by the other boys because he has no father. The Boy