. Military Space News .




.
SPACE SCOPES
A Postcard from Extragalactic Space
by Staff Writers
Paris, France (SPX) Jun 02, 2011

Wide Field Imager view of a Milky Way look-alike, NGC 6744.

ESO astronomers have used the Wide Field Imager on the MPG/ESO 2.2-metre telescope to capture an image of NGC 6744. This impressive spiral galaxy lies about 30 million light-years away in the southern constellation of Pavo (The Peacock). But this view could almost be a picture postcard of our own Milky Way, taken and sent by an extragalactic friend, as this galaxy closely resembles our own.

We see NGC 6744 almost face on, meaning we get a dramatic bird's eye view of the galaxy's structure. If we had the technology to escape the Milky Way and could look down on it from intergalactic space, this view is close to the one we would see - striking spiral arms wrapping around a dense, elongated nucleus and a dusty disc.

There is even a distorted companion galaxy - NGC 6744A, seen here as a smudge to the lower right of NGC 6744, which is reminiscent of one of the Milky Way's neighbouring Magellanic Clouds.

One difference between NGC 6744 and the Milky Way is their size. While our galaxy is roughly 100 000 light-years across, the galaxy pictured here extends to almost twice this diameter. Nevertheless, NGC 6744 gives us a tantalising sense of how a distant observer might see our own galactic home.

This dramatic object is one of the largest and nearest spiral galaxies. Although it has a brightness of about 60 billion Suns, its light spreads across a large area in the sky - about two thirds the width of the full Moon, making the galaxy appear as a hazy glow with a bright centre through a small telescope.

Still, it is one of the most beautiful objects in the southern sky, and it can be identified by amateur astronomers as an oval shape contrasting with a rich background of stars.

With professional telescopes such as the MPG/ESO 2.2-metre telescope at La Silla, which captured this image, NGC 6744 can be seen in all its glory. The dusty spiral arms are home to many glowing star-forming regions (seen in red) and give this Milky Way look-alike its striking spiral form.

This picture was taken by the Wide Field Imager attached to the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile. The picture was created from exposures taken through four different filters that passed blue, yellow-green and red light and the glow coming from hydrogen gas. These are shown in this picture as blue, green, orange and red, respectively.

Related Links
ESO
Space Telescope News and Technology at Skynightly.com

.
Get Our Free Newsletters Via Email
...
Buy Advertising Editorial Enquiries






. Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle



SPACE SCOPES
Nature's Best Magnifying Glass Views Eary Spiral Galaxy
Kamuela HI (SPX) May 31, 2011
Astronomers in Hawaii have plucked unprecedented details from the life of an early galaxy using an unusually lucid gravitational lens coupled with the powerful 10-meter Keck II Telescope on Mauna Kea. Gravitational lenses are Nature's largest telescopes, created by colossally massive clusters of thousands of galaxies that bend and magnify the light of more distant objects behind them in a ... read more


SPACE SCOPES
Army Receives First THAAD Missiles

Medvedev says Russia, US 'losing time' on missile defense

Obama offers reassurance over anti-missile plans

Lithuania will seek NATO missile assurances at Obama meet

SPACE SCOPES
West to have 80,000 cruise missiles by 2020

Boeing Awarded PAC-3 Seeker Production Contract

Israel to switch Hawks for David's Sling

China 'to target 1,800 missiles at Taiwan in 2012'

SPACE SCOPES
AeroVironment Receives New Orders for Digital Raven Systems

NMSU stages successful UAV test over Hatch

RAF Announces New Reaper Squadron

US Navy and Northrop Grumman-led UCAS-D Flight Test Team Honored Twice by USAF

SPACE SCOPES
Lockheed system proves its worth

Intelsat General To Support Armed Forces Radio And Television Service

Northrop Grumman Awarded Continuing Operation of Battlefield Airborne Communications Node Contract

ADTI Launches High Performance Antenna Arrays Protype Program

SPACE SCOPES
Russian arms depot blasts force evacuation of 28,000

Gripen Tigers Flew in France

GDLS to maintain Aussie army vehicles

New weapons for 'robust' US role in Asia: Gates

SPACE SCOPES
Russia delivers another batch of naval fighters to India

Arms sales to Arabs states under fire

GD to Deliver Through Life Support for ASLAV, M1A1 and M88A2 Fleets

Al-Qaeda plot to kill Lockheed chief: testimony

SPACE SCOPES
Chinese military build-up no threat: senior army official

US military chief 'open' to ideas on Japan base

Gates denies US wants to 'hold China down'

US image in Japan up sharply after quake: poll

SPACE SCOPES
MLD Test Moves Navy A Step Closer To Lasers For Ship Self-Defense

US Navy And Northrop Grumman Accomplish Goals For At-Sea Demonstration Of Maritime Laser

.
The content herein, unless otherwise known to be public domain, are Copyright 1995-2011 - Space Media Network. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement