Eta Carinae: The Great Eruption of a Massive Star | STScI FriendsofNASA.org: Eta Carinae, or Eta Car, is famous for a brilliant and unusual outburst, called the "Great Eruption", observed in the 1840s. This visualization presents the story of that event and examines the resulting multiwavelength emissions and three-dimensional structures surrounding Eta Car today. Massive stars are known to have major outbursts. Eta Car, one of the most massive stars known, expelled about 10% of its mass in the
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Ever wonder how Eta Carinae got its unusual shape? This animation shows how it may have started—as a triple-star system—before one of the stars bulks up by taking most of the material from one of its siblings. The stars start to trade places and when two merge an explosion of epic proportions produces bipolar ejections from the giant star. The surviving companion star settled into an elongated orbit around the merged pair, passing through the monster star's outer gaseous layers every 5.5 years.
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57K views · 885 reactions | The binary star, Eta Carinae, is the most luminous and massive system within 10,000 light-years of Earth. Here, a supercomputer simulation shows the interaction of gas outflows between the two stars. Lighter colors indicate higher gas densities. Learn more: go.nasa.gov/3PFLwVp | NASA Ames Research Center | Facebook
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