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• It's rare when star patterns on our sky's dome have anything to do with real associations of stars in space, but these stars are thought to be loosely bound by gravity. All three are located at approximately the same distance, about 500 light-years away. All are thought to be members of the Scorpius-Centaurus group, which was first recognized by astronomers in the early part of the twentieth century. • About 100 stars are known in the Scorpius-Centaurus group, including Antares, the brightest star in Scorpius - also pictured on today's chart. The moon, by the way, will move closer to Antares on Tuesday, February 5. The Scorpius-Centaurus stars share a common motion through space. They were probably all born from a single vast cloud of gas and dust. In other words, these stars are much like a family - loosely bound - sharing a common history. • Look for the Crown of the Scorpion to the east (or left) of the waning crescent moon in the predawn hours on Monday, February 4. •
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