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'Ghost Of Jupiter' Photo Shows Spooky-Looking Nebula In A Whole New Light

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Paradox
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« on: February 09, 2015, 03:00:15 am »


'Ghost Of Jupiter' Photo Shows Spooky-Looking Nebula In A Whole New Light
The Huffington Post  |  By David Freeman

We've known about the Ghost of Jupiter since 1785, when it was discovered by the German-born astronomer William Herschel (1738-1822). But a captivating new image released by the European Space Agency (ESA) shows the spooky-looking planetary nebula in a whole new light.

(Story continues below image.)


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Paradox
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« Reply #1 on: February 09, 2015, 03:01:17 am »

Known formally as NGC 3242, the Ghost of Jupiter is located about 3,000 light-years away in the southern constellation Hydra, according to ESA. It consists of a fading white dwarf star enveloped by a double-shell structure.

In the new image, the blue glow is evidence of super-hot, X-ray-emitting gas that's being buffeted by stellar winds gusting at 2,400 kilometers per second. The green glow marks cooler gas. Those two flame-shaped, orange features at the upper right and lower left? Those are pockets of even cooler gas.

The image is a composite of images captured by XMM-Newton, an orbiting X-ray observatory launched by ESA in 1999, and the Hubble Space Telescope.

Planetary nebulae have nothing to do with planets but were given that name by 18th Century astronomers who were confused by their roundish shapes, according to ESA. In fact, they are the puffed-up remnants of dying stars that--at 0.8 to eight times as massive as the sun--are considered relatively small.

And where did the Ghost of Jupiter get its name?

"Supposedly, it is so named because of its resemblance to the planet Jupiter," Dr. You-Hua Chu, a former professor of astronomy at the University of Illinois, Urbana-Champaign and one of the scientists behind the new image, told The Huffington Post in an email. "I confess that I do not see the resemblance."
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Paradox
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« Reply #2 on: February 09, 2015, 03:01:48 am »



This photo was among the first images taken by the Atmospheric Imaging Assembly on NASA's Solar Dynamics Observatory satellite.
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Paradox
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« Reply #3 on: February 09, 2015, 03:02:26 am »




Australian National University astrophysicist Brian Schmidt chose this Hubble photo of Supernova SN 1994D as his favorite space image, which he called "the poster child of a type Ia supernovae."
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« Reply #4 on: February 09, 2015, 03:03:18 am »



This photo shows helmets and spacesuits covered in lunar dust after the last manned moonwalk, from the 1972 Apollo 17 mission.
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« Reply #5 on: February 09, 2015, 03:03:57 am »




The crescent planet Neptune and its crescent moon Triton, as seen by NASA's Voyager 2 spacecraft in 1989.
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« Reply #6 on: February 09, 2015, 03:04:30 am »




"Earthrise," the first picture taken of planet Earth by people orbiting the moon. This shot was captured by Apollo 8 astronaut Bill Anders on December 24, 1968, as his spacecraft became the first to fly around the moon.
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« Reply #7 on: February 09, 2015, 03:05:16 am »




This photo, called "Earth From Mars," was taken by NASA's Mars Exploration Rover Spirit on March 8, 2004. It was the first image of Earth seen from the surface of a planet beyond the moon.
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« Reply #8 on: February 09, 2015, 03:06:09 am »



This seminal 1995 image was taken by the Hubble Space Telescope. Called the Hubble Deep Field, it collected light over many hours to reveal the deepest view of the universe yet, which included thousands of distant galaxies.
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