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Science/Tech
See other Science/Tech Articles

Title: Astronomy Picture of the Day
Source: NASA
URL Source: http://antwrp.gsfc.nasa.gov/apod/astropix.html
Published: Mar 4, 2005
Author: Robert Nemiroff (MTU) & Jerry Bonnell (U
Post Date: 2005-03-04 08:04:20 by 2Trievers
Keywords: Astronomy, Picture
Views: 2006
Comments: 2

Astronomy Picture of the Day

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2005 March 4
See Explanation. Clicking on the picture will download
the highest resolution version available.

NGC 1427A: Galaxy in Motion
Credit:

Hubble Heritage Team (AURA / STScI), ESA,

NASA

Explanation:

In this tantalizing image, young blue star clusters and pink star-forming regions abound in NGC 1427A, a galaxy in motion.

The small irregular galaxy's swept back outline points toward the top of this picture from the Hubble Space Telescope - and that is indeed the direction NGC 1427A is moving as it travels toward the center of the

Fornax cluster of galaxies, some 62 million light-years away.

Over 20,000 light-years long and similar to the nearby Large Magellanic Cloud, NGC 1427A is speeding through the Fornax cluster's intergalactic gas at around 600 kilometers per second.

The resulting pressure is giving the galaxy its arrowhead outline, triggering the beautiful but violent episodes of star formation.

Still, it is understood that interactions with cluster gas and the other cluster galaxies during its headlong flight will ultimately disrupt galaxy NGC 1427A.

Many unrelated background galaxies are visible in the sharp Hubble image, including a striking

face-on spiral galaxy at the upper left.

Tomorrow's picture: light-weekend


(1 image)

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#1. To: 2Trievers (#0)

And I thought stars were just bright white lights.

robin  posted on  2005-03-04   9:06:37 ET  Reply   Trace   Private Reply  


#2. To: 2Trievers (#0)

We may not be alone.

Thanks for the cosmic beauty.

Lod  posted on  2005-03-04   9:15:01 ET  Reply   Trace   Private Reply  


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