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Title
A Cauldron Of Stars At The Galaxy's Center
Artist
Eric Glaser
Medium
Photograph - Digital Photography
Description
"A Cauldron of Stars at the Galaxy's Center"
This dazzling infrared image from NASA's Spitzer Space Telescope shows hundreds of thousands of stars crowded into the swirling core of our spiral Milky Way galaxy. In visible-light pictures, this region cannot be seen at all because dust lying between Earth and the galactic center blocks our view.
In this false-color picture, old and cool stars are blue, while dust features lit up by blazing hot, massive stars are shown in a reddish hue. Both bright and dark filamentary clouds can be seen, many of which harbor stellar nurseries. The plane of the Milky Way's flat disk is apparent as the main, horizontal band of clouds. The brightest white spot in the middle is the very center of the galaxy, which also marks the site of a supermassive black hole.
The region pictured here is immense, with a horizontal span of 890 light-years and a vertical span of 640 light-years. Earth is located 26,000 light-years away, out in one of the Milky Way's spiral arms. Though most of the objects seen in this image are located at the galactic center, the features above and below the galactic plane tend to lie closer to Earth.
Scientists are intrigued by the giant lobes of dust extending away from the plane of the galaxy. They believe the lobes may have been formed by winds from massive stars.
This image is a mosaic of thousands of short exposures taken by Spitzer's infrared array camera, showing emissions from wavelengths of 3.6 microns (blue), 4.5 microns (green), 5.8 microns (orange), and 8.0 microns (red). The entire region was imaged in less than 16 hours.
Image enhanced by Eric Glaser
Image and Text Credit: NASA/JPL-Caltech
Uploaded
January 23rd, 2020
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Viewed 337 Times - Last Visitor from Fairfield, CT on 04/18/2024 at 9:38 AM
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