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Post Info TOPIC: Zeta Ophiuchi
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Shot Away from its Companion, Giant Star Makes Waves

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Like a ship ploughing through still waters, the giant star Zeta Ophiuchi is speeding through space, making waves in the dust ahead. NASA's Spitzer Space Telescope has captured a dramatic, infrared portrait of these glowing waves, also known as a bow shock.
Astronomers theorise that this star was once sitting pretty next to a companion star even heftier than itself. But when that star died in a fiery explosion, Zeta Ophiuchi was kicked away and sent flying. Zeta Ophiuchi, which is 20 times more massive and 80,000 times brighter than our sun, is racing along at about 24 kilometres per second.
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Blobrana


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Discoveries announced in early 2011 show that Zeta Ophiuchi is moving through space at 85,000 km/h, having likely been ejected from orbit around a more massive star that was destroyed in its own supernova blast. Due to this high proper motion in combination with high intrinsic brightness and its current location in a dust-rich area of the galaxy, the star is creating a bow-shock in the direction of motion. This shock has been made visible via NASA's Wide-field Infrared Survey Explorer
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Blobrana


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Runaway Star Ploughs Through Space

A massive star flung away from its former companion is ploughing through space dust. The result is a brilliant bow shock, seen here as a yellow arc in a new image from NASA's Wide-field Infrared Survey Explorer, or WISE.
The star, named Zeta Ophiuchi, is huge, with a mass of about 20 times that of our sun. In this image, in which infrared light has been translated into visible colours we see with our eyes, the star appears as the blue dot inside the bow shock.
Zeta Ophiuchi once orbited around an even heftier star. But when that star exploded in a supernova, Zeta Ophiuchi shot away like a bullet. It's traveling at a whopping 54,000 miles per hour (or 24 kilometres per second), and heading toward the upper left area of the picture.
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