摘要

To create this false-colour view, ultraviolet, green and infrared images were combined into a single picture that exaggerates the color differences of terrain on the moon. These data were combined with a high-resolution image taken in visible light to provide the high-resolution information from the clear-filter image and the color information from the ultraviolet, green and infrared filter images.

The natural color of Mimas visible to the human eye may be a uniform gray or yellow color, but this mosaic has been contrast-enhanced and shows differences at other wavelengths of light. During its closest-ever flyby on Feb. 13, 2010, Cassini came within about 9,500 kilometres of Mimas. This view looks toward the northern part of the hemisphere of Mimas that leads in the moon's orbit around Saturn. Mimas is 396 kilometres across. North on Mimas is up and rotated 12 degrees to the left. The images were obtained with Cassini's narrow-angle camera on that day at a distance of approximately 16,000 kilometres from Mimas. The images were re-projected into an orthographic map projection. A black and white image, taken in visible light with the wide-angle camera, is used to fill in parts of the mosaic. Image scale is 90 meters per pixel.

许可协议

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