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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #922671
08/26/17 03:05 AM
08/26/17 03:05 AM
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Mona - Astronomy Online content OP
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Yesterday was the 14th anniversary of the launch of NASA's Spitzer Space Telescope. [Artist's conception of the telescope against an infrared sky]

It's an infrared telescope whose main mission finished in 2009 when it ran out of the coolant that's needed to keep it at an operating temperature. However one of the instruments is still functioning and continues to provide valuable data. The mission was renamed the Spitzer Warm Mission and redirected to its current capabilities.

The telescope was named in honor of Lyman Spitzer, an astronomer who had promoted the concept of space telescopes in the 1940s.


Mona Evans
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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #922688
08/27/17 12:28 PM
08/27/17 12:28 PM
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A startling picture of the Helix Nebula from Spitzer Space Telescope data. The nebula is about 700 light years away in the constellation Aquarius. The white dwarf star is visible in the center - it's what remains of a sunlike star after it ran out of nuclear fuel.
Quote:
The bright red glow immediately around it is probably the dust kicked up by colliding comets that survived the death of their stellar host.


Image: NASA/JPL-Caltech/Univ.of Ariz.


Mona Evans
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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #922745
08/30/17 06:41 AM
08/30/17 06:41 AM
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Three images of the Sculptor Galaxy from the Spitzer Space Telescope during its "cold" mission, i.e., before the coolant ran out. The largest of the three images is a composite of the two smaller ones.

The galaxy is 11.4 million light years away and is a feature of the southern sky. However it can be seen low in the sky in the northern hemisphere - it was discovered in 1783 by Caroline Herschel from the south of England. The Sculptor Galaxy (NGC 253) is a starburst galaxy, i.e., one whose nucleus contains a region of copious star formation.

Image: NASA/JPL-Caltech


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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #924295
11/09/17 08:18 PM
11/09/17 08:18 PM
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Mona - Astronomy Online content OP
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This image of spiral galaxy M81 is a composite. In the image Chandra X-ray Observatory data is blue, optical data from the Hubble Space Telescope is green, infrared data is from the Spitzer Space Telescope (shown in pink), and there is ultraviolet data from GALEX shown in purple.

The inset shows a close-up the Chandra image. The center of M81 is a supermassive black hole about 70 million times more massive than the Sun.


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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #924296
11/09/17 09:07 PM
11/09/17 09:07 PM
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A
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Mona, what beautiful spirals.

Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #927928
05/21/18 06:52 PM
05/21/18 06:52 PM
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WISE launched into the morning skies above Vandenberg Air Force Base in central California on Dec. 14, 2009. By early 2011, it had finished scanning the entire sky twice in infrared light, snapping pictures of three-quarters of a billion objects, including remote galaxies, stars and asteroids. Today, astronomers continue to mine a cosmic quarry of data provided by WISE.

NASA's Wide-field Infrared Survey Explorer (WISE) was launched in December 2009. It was an infrared telescope designed to scan the entire sky twice, imaging three-quarters of a billion objects. In this database of images are some of the the most luminous galaxies in the universe -- incredibly energetic objects bursting with new stars. The infrared telescope can see the glow of dust that shrouds these galaxies, hiding them from visible-light telescopes.

Artist's concept of the Wide-field Infrared Survey Explorer. Image credit: NASA/JPL-Caltech


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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #927945
05/22/18 06:33 PM
05/22/18 06:33 PM
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Here is the Blue Horsehead Nebula (IC 4592) in infrared from WISE. In infrared we don't see a horse's head shape. We see "a complex labyrinth of filaments, caverns, and cocoons of glowing dust and gas" which spans about 40 light years. It looks rather like an abstract painting. The nebula is some 400 light years away from us in the constellation Scorpius. The star that is mainly responsible for heating the dust and for illuminating the nebula is Nu Scorpii - it's a reddened star to the left of center in the image.

Image Credit: WISE, IRSA, NASA; Processing & Copyright : Francesco Antonucci


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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #928061
05/28/18 04:54 AM
05/28/18 04:54 AM
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This composite NASA image of the spiral galaxy M81, located about 12 million light years away, includes X-ray data from the Chandra X-ray Observatory (blue), optical data from the Hubble Space Telescope (green), infrared data from the Spitzer Space Telescope (pink) and ultraviolet data from GALEX (purple). The inset shows a close-up of the Chandra image. At the center of M81 is a supermassive black hole that is about 70 million times more massive than the Sun.


Mona Evans
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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #928062
05/28/18 04:58 AM
05/28/18 04:58 AM
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Mona - Astronomy Online content OP
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This composite NASA image of the spiral galaxy M81, located about 12 million light years away, includes X-ray data from the Chandra X-ray Observatory (blue), optical data from the Hubble Space Telescope (green), infrared data from the Spitzer Space Telescope (pink) and ultraviolet data from GALEX (purple). The inset shows a close-up of the Chandra image. At the center of M81 is a supermassive black hole that is about 70 million times more massive than the Sun.


Mona Evans
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Re: Hubble isn't the only telescope [Re: Mona - Astronomy] #928072
05/28/18 06:34 AM
05/28/18 06:34 AM
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Lisa LowCarb / VideoGames Offline
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Oooooo that is pretty! It makes one realize just how tiny we are in the universe. And we're only on our planet for the blink of an eye ...


Lisa Shea, Low Carb / Video Games Editor
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