Facts about Cancer Constellation
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Approximately 2,000 stars comprise Cancer Constellation overall, though most remain invisible without telescopes due to its lack of bright naked-eye stars compared to neighboring constellations.
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Cancer Constellation's brightest star, Altarf, will eventually evolve into a red giant and expand significantly within the next few billion years.
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In 1662, Giovanni Battista Hodierna identified the Beehive Cluster as a nebulous star group, making it among astronomy's earliest telescopic discoveries in Cancer Constellation.
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Ancient Babylonians associated Cancer Constellation with the crab from Heracles' second labor around 1800 BCE, naming it Alluttu in cuneiform texts.
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Bright star Altarf, also called Beta Cancri, marks Cancer Constellation's brightest point at magnitude 3.5 and lies approximately 290 light-years away.
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The Beehive Cluster, located in Cancer Constellation, contains approximately 1,000 stars and lies about 577 light-years from Earth.