NASAのインスタグラム(nasagoddard) - 4月20日 02時48分

@NASAHubble celebrates its 29th anniversary with a colorful look at the Southern Crab Nebula ✨🦀 ✨

The festive, colorful nebula, is located several thousand light-years from Earth in the southern hemisphere constellation of Centaurus. It appears to have two nested hourglass-shaped structures that were sculpted by a whirling pair of stars in a binary system. The duo consists of an aging red giant star and a burned-out star, a white dwarf. The red giant is shedding its outer layers. Some of this ejected material is attracted by the gravity of the companion white dwarf.

The result is that both stars are embedded in a flat disk of gas stretching between them. This belt of material constricts the outflow of gas so that it only speeds away above and below the disk. The result is an hourglass-shaped nebula.

Credit: NASA, ESA, and STScI #nasagoddard #space #crab #nebula #science #stars #star

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