HD 189733b, Exoplanet, Composite

2013 21st century acis advanced ccd imaging spectrometer astronomy binary star celestial body chandra x ray observatory composite image cxc deep space eclipsing ellipse exoplanet hd 189733 hd 189733b illustration outer space science space art star cloud star cluster star system two stars orbiting v452 vulpeculae x ray astronomy x ray detection x ray emission x ray observation