Tuesday, June 28, 2011

Postcards from space extragalactic? Our Milky way-like spiral galaxy

ESO astronomers use a wide field Imager telescope MPG/ESO 2.2 m to capture the image of NGC 6901. This lies an impressive spiral galaxy about 30 million with away in the southern constellation of pavo (the Peacock). But this can be virtually visible picture of our Milky way, the photo submitted by a member of this Galaxy as extragalactic is similar to ours.

We see NGC 6901 almost face, meaning we get dramatic bird of the structure of the Galaxy. If we have the technology to escape the milk can look down it from the intergalactic space, this view is close to the one we will see an impressive spiral arms wrap-around, the length of a dusty disk. It even helps galaxy NGC 6744A distorted, seen here as spreading to the lower right of the NGC 6901, reminding one of the milky way, Magellanic Clouds of the neighbourhood.


One difference between NGC 6901 milk is their size. Although about 100 thousand light years across the Galaxy, Galaxy continued until it was almost twice the diameter. Nevertheless, NGC 6901 gives us a sense of how far the Highlight Viewer may see our Galactic.


Object this is one of the major dramatic and closest to the galaxies. Although there is a brightness of about 60 billion, its light spreads over a large area in the sky-two-thirds the width of the full moon, making a vague radiance appear Galaxy with a bright Center through a small telescope. Still, this is one of the most beautiful objects in the sky, it is possible to identify by amateur astronomers as the shape of an ellipse with a background of contrasting stars.


With professional telescopes such as telescope MPG/ESO 2.2-metre La Silla, who captured this image, can be seen in NGC 6901 macaw. In the dusty spiral arms are home to many MICAS glowing Star (red) and give it its impressive double of the milky way spiral.


This picture was taken by the wide field Imager joined telescope MPG/ESO 2.2 m at the La Silla Observatory of ESO in Chile. The image was created from the exposures taken with four different filters have blue, yellow-green and red light and glow coming from hydrogen. These are shown in the picture like blue, green, orange and red, respectively.


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The above story is published  materials provided by the Observatory in southern Europe-ESO.

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