File:NGC 4485.png

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Original file (3,213 × 2,836 pixels, file size: 16.06 MB, MIME type: image/png)

Captions

Captions

NGC 4485

Summary

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Description
English: The irregular galaxy NGC 4485 shows all the signs of having been involved in a hit-and-run accident with a bypassing galaxy. Rather than destroying the galaxy, the chance encounter is spawning a new generation of stars, and presumably planets.

The right side of the galaxy is ablaze with star formation, shown in the plethora of young blue stars and star-incubating pinkish nebulas. The left side, however, looks intact. It contains hints of the galaxy's previous spiral structure, which, at one time, was undergoing normal galactic evolution.

The larger culprit galaxy, NGC 4490, is off the bottom of the frame. The two galaxies sideswiped each other millions of years ago and are now 24,000 light-years apart. The gravitational tug-of-war between them created rippling patches of higher-density gas and dust within both galaxies. This activity triggered a flurry of star formation.

This galaxy is a nearby example of the kind of cosmic bumper-car activity that was more common billions of years ago when the universe was smaller and galaxies were closer together.

NGC 4485 lies 25 million light-years away in the northern constellation Canes Venatici (the Hunting Dogs).

This new image, captured by Hubble's Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS), provides further insight into the complexities of galaxy evolution.
Date (released)
Source https://hubblesite.org/image/4499/gallery (image link)
Author

NASA and ESA;

  • Acknowledgment: T. Roberts (Durham University, UK), D. Calzetti (University of Massachusetts) and the LEGUS Team, R. Tully (University of Hawaii), and R. Chandar (University of Toledo)
This image or video was catalogued by one of the centers of the United States National Aeronautics and Space Administration (NASA) under Photo ID: STScI-2019-30.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.
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Licensing

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Date/TimeThumbnailDimensionsUserComment
current18:18, 30 November 2019Thumbnail for version as of 18:18, 30 November 20193,213 × 2,836 (16.06 MB)Huntster (talk | contribs)Full resolution from Hubblesite.
18:48, 22 November 2019Thumbnail for version as of 18:48, 22 November 20191,000 × 882 (1.65 MB)Killarnee (talk | contribs)User created page with UploadWizard

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