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New Views of Our Milky Way Revealed
Space.com ^ | 9/22/09 | Clara Moskowitz

Posted on 09/22/2009 4:54:35 PM PDT by NormsRevenge

New photographs of the center of the Milky Way reveal the chaotic environment at the heart of our galaxy, where a supermassive black hole is thought to lurk.

The close-up views come from two recent projects - one undertaken by an amateur astronomer. Stephane Guisard, an engineer at the European Southern Observatory (ESO) in Chile, used his personal 10-cm telescope to take 1,200 individual images over 29 nights during his free time. He then combined the photos, which took a total of more than 200 hours of exposure time, into a stunning mosaic image of the Milky Way's center.

The vista reveals an area of the sky spanning from the constellation Sagittarius to the constellation Scorpius. Running through the image is the dusty track of the Milky Way's disk - the dense Frisbee shape that contains the spiral arms of the galaxy. Colorful nebulae - including the pink cloud of the Lagoon Nebula (also known as Messier 8) - where furious star formation is occurring - dot the scene.

...

Guisard's image was released as part of ESO's Gigagalaxy Zoom project, which aims to connect images of the sky as seen with the naked eye, to close-up views taken with amateur and professional telescopes. Members of the public can explore the connected images online at http://www.gigagalaxyzoom.org/ to zoom in on the sky in extreme detail.

Another new look at the heart of the Milky Way comes from NASA's Chandra X-ray Observatory. The deep image, a mosaic of images taken during 88 individual observation sessions, reveals the area around our galaxy's humongous central black hole, Sagittarius A*. ...

The images also show mysterious filaments, or strands of X-ray light that scientists think represent large magnetic structures interacting with streams of very energetic electrons released by rapidly spinning neutron stars.

(Excerpt) Read more at space.com ...


TOPICS: Astronomy; Chit/Chat; Science
KEYWORDS: milkyway; revealed; science; views

1 posted on 09/22/2009 4:54:36 PM PDT by NormsRevenge
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A close-up view toward the center of our Milky Way galaxy
taken by the Chandra X-Ray observatory. Credit: NASA/CXC/UMass/D. Wang et al.

2 posted on 09/22/2009 4:55:47 PM PDT by NormsRevenge (Semper Fi ... Godspeed .. Monthly Donor Onboard)
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This image, showing the center of the Milky Way, from the constellation Sagittarius
to the constellation Scorpius, was taken by amateur astronomer and astrophotographer Stephane Guisard.


3 posted on 09/22/2009 4:56:59 PM PDT by NormsRevenge (Semper Fi ... Godspeed .. Monthly Donor Onboard)
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To: NormsRevenge

I still maintain that the universe is vastly overated...


4 posted on 09/22/2009 4:59:49 PM PDT by FDNYRHEROES (In just His first 3 days, the War on Terror became the War on Free Speech.)
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To: NormsRevenge
Ive been doing trial and error all summer abd I'm finally getting within sight of my goal of taking decent night sky photos. Its still not quite perfect but I'm getting there.

Image Hosted by ImageShack.us
5 posted on 09/22/2009 5:03:20 PM PDT by cripplecreek (Seniors, the new shovel ready project under socialized medicine.)
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To: cripplecreek

Thank goodness for digital cameras. Practice Practice..


6 posted on 09/22/2009 5:12:58 PM PDT by NormsRevenge (Semper Fi ... Godspeed .. Monthly Donor Onboard)
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To: NormsRevenge

I think I managed to pick up M-51 in this one.

http://img12.imageshack.us/img12/5418/img8546r.jpg

I actually need much longer exposures at a lower ISO value so I can lose some of the grainyness but I need to be able to track with the stars to avoid smearing them .


7 posted on 09/22/2009 5:16:18 PM PDT by cripplecreek (Seniors, the new shovel ready project under socialized medicine.)
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To: cripplecreek
Very well done. This is something you should be proud of accomplishing. Can you give some details of how you are doing this?......C
8 posted on 09/22/2009 5:33:52 PM PDT by colinhester
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To: NormsRevenge

That is GREAT WORK! I have a good friend who works up there. He is in charge of keeping the electricals working...ALL of them!


9 posted on 09/22/2009 5:34:45 PM PDT by WellyP
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To: NormsRevenge

ping


10 posted on 09/22/2009 5:35:16 PM PDT by 4Speed
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To: colinhester

It was a 30 second exposure at f/3.5 ISO 800.

I would be better at ISO 400 or less with an exposure of 90 seconds or so. Unfortunately I’m not set up to track with the stars yet so a longer exposure would show the stars as streaks.


11 posted on 09/22/2009 5:48:35 PM PDT by cripplecreek (Seniors, the new shovel ready project under socialized medicine.)
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To: cripplecreek

Those are beautiful pics, kudo’s!


12 posted on 09/22/2009 6:35:39 PM PDT by Michael Barnes (The synonym decides above the combining remedy.)
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To: NormsRevenge

ping


13 posted on 09/23/2009 12:58:36 PM PDT by Bellflower (If you are left DO NOT take the mark of the beast and be damned forever.)
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