Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

A spiral galaxy that resembles our Milky Way

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
Home » Discuss » Topic Forums » Science Donate to DU
 
n2doc Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-11-11 07:48 PM
Original message
A spiral galaxy that resembles our Milky Way

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.
more
http://www.eso.org/public/news/eso1118/
Refresh | +8 Recommendations Printer Friendly | Permalink | Reply | Top
indepat Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-11-11 08:03 PM
Response to Original message
1. Just can't seem to get my mind wrapped around the vastness of outer
space. ;)
Printer Friendly | Permalink | Reply | Top
 
Odin2005 Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-11-11 10:35 PM
Response to Original message
2. *YOU ARE HERE*
Printer Friendly | Permalink | Reply | Top
 
Mira Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jun-11-11 11:13 PM
Response to Original message
3. The incomprehensible just got bigger. Thanks, I think.....K&R
Printer Friendly | Permalink | Reply | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view 
this author's profile Click to add 
this author to your buddy list Click to add 
this author to your Ignore list Tue May 07th 2024, 05:31 AM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » Topic Forums » Science Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC