X-ray, Optical and Radio Images of CH Cyg
The image on the left shows a composite image of X-ray data from Chandra (red), optical data from the Hubble Space Telescope (green), and radio data from the Very Large Array (blue), while the image on the right shows an optical view of CH Cyg (Digitized Sky Survey). CH Cyg is a so-called symbiotic system in which a white dwarf feeds from the wind of a red giant star. The material from the wind forms a hot accretion disk around the white dwarf before crashing onto the star. CH Cyg is one of only a few hundred symbiotic systems known, and one of the closest to the Earth.
(Credit: X-ray: NASA/CXC/SAO/M.Karovska et al; Optical: NASA/STScI; Radio: NRAO/VLA]; Wide field [Optical (DSS))

CH Cyg with Scale Bar
(Credit: X-ray: NASA/CXC/SAO/M.Karovska et al; Optical: NASA/STScI; Radio: NRAO/VLA]; Wide field [Optical (DSS)