Wilt Chamberlain dunks over Bill Russell during Game 5 of the NBA Eastern Division Finals between the 76ers and Celtics on April 11, 1967 at Convention Hall in Philadelphia. “Wilt the Stilt,” aka “The Big Dipper,” was a four-time MVP and 13-time All-Star who remains the all-time leader in rebounds. He was born on Aug. 21, 1936. (Neil Leifer for SI)
Fact: The Big Dipper is not a constellation, it is an asterism
Many people consider the big dipper to be a constellation but, in fact, it is an asterism. An asterism is a pattern of stars in the sky which is not one of the official 88 constellations; they are also composed of stars which are not physically related to each other and can be vast distances apart. An asterism can be composed of stars from one or more constellations – in the case of the Big Dipper, it is composed entirely of the seven brightest stars in the Ursa Major (Great Bear) constellation.