X-ray/Optical Composite
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)
Scale: Optical image is 4 arcmin per side. X-ray image is 30 arcsec per side.

Full-field X-ray Image
This image shows the region surrounding the quasar pair Q2345+007 as seen by the Chandra X-ray Observatory.
(Credit: NASA/SAO/CXC/P.Green et al.)
Scale: Image is 9 arcmin per side.

'Raw' X-ray Image
In this minimally processed Chandra image, the colors indicate X-ray energy bands - red (low), green (medium), and blue (high). The object known as Q2345+007 "A" is the one to the upper left.
(Credit: NASA/SAO/CXC/P.Green et al.)
Scale: Image is 1 arcmin per side.

Optical Image of Q2345+007 Field
The optical image was obtained using the MOSAIC CCD camera on the 4-meter Blanco telescope at Cerro Tololo Interamerican Observatory in Chile. National Optical Astronomy Observatory is operated by the Association of Universities for Research in Astronomy (AURA), Inc., under a cooperative agreement with the National Science Foundation.
(Credit: NOAO)
Scale: Image is 4 arcmin per side.

Chandra X-ray Image with Scale Bar
Scale bar = 5 arcsec
Credit: NASA/SAO/CXC/P.Green et al.