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TitleX-ray Moon and X-ray Star DescriptionThis image of the Moon in X-rays was made in 1991 using data from the Roentgen Satellite (ROSAT), an X-ray observatory. In this picture, pixel brightness corresponds to X-ray intensity. The Moon reflects lower energy X-rays (shown as red) from the Sun. The source of high energy X-rays (shown as yellow) is a distant binary star system. The background is speckled with X-rays from many distant, powerful active galaxies. The picture also shows the Moon passing in front of of and obscuring the binary star, a phenomenon called occultation. InstrumentROSAT Subject
Spectral TypeX-ray Date Created1991 CreditsMax-Planck-Institut für extraterrestrische Physik (MPE), NASA TypeObservation Associated LessonX-Ray History |
