Detail View: NASA Chandra Space Telescope Collection:

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Optical image is 4 arcmin per side. X-ray image is 30 arcsec per side.
Description: 
In this image, Chandra's image of the quasar pair can be seen in relation to the wider field of view obtained in optical wavelengths. (Credit: X-ray: NASA/SAO/CXC/P.Green et al., Optical: NOAO)
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SPD-CHAND-photo/2002/1273/1273_xray_opt_comp.jpg
original url: 
http://chandra.harvard.edu/photo/2002/1273/more.html