Astronomers Use Hubble and Keck to Identify Dwarf Galaxy

STScI-PRC2007-38b

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ABOUT THIS IMAGE:

This is a color composite image of the gravitational lens system, made from Hubble (blue and green filters) and Keck (red filter) data. The blue ring is the tiny background galaxy that is being stretched by the gravitational pull of the foreground "lens" galaxy at the center of the image.

Object Names: SDSS J0737+3216, SLACS J0737+3216

Image Type: Astronomical/Illustration

Credit: NASA, ESA, and P. Marshall and T. Treu (University of California, Santa Barbara)

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