by on DECEMBER 9, 2010
The image above shows the variation in temperature over the span of NGC 5813. The outline encircles a region 367,000 light years in diameter, and the temperatures indicated are in millions of degrees. Red indicates warmer temperatures, blue cooler. This image uses information from the Chandra X-Ray Observatory and optical imaging from the Sloan Digital Sky Survey (SDSS). Image Credit: Credit: X-ray: NASA/CXC/SAO/S.Randall et al., Optical: SDSS
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