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Anticyclone over the South Pacific by Rosetta

Published by Matt on Mon Nov 16, 2009 12:11 pm via: source
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Rosetta’s OSIRIS imaging system spotted an anticyclone over the South Pacific on the morning of 13 November. The images show the scene roughly as a human eye would see it.

Cloud structures over the South Pacific, seen with the OSIRIS Imaging System’s narrow-angle camera on 13 November at 06:48 CET.

Anticyclone over the South Pacific. Credit: ESA

Anticyclone over the South Pacific. Credit: ESA

This false-colour composite was generated from the orange, green and blue optical colour filters of the anticyclone visible close to the centre of the image below. This filter triplet depicts a portion of the scene below with five times the resolution.

OSIRIS wide-angle camera image of cloud structures over the South Pacific. Credit: ESA

OSIRIS wide-angle camera image of cloud structures over the South Pacific. Credit: ESA

Taken three minutes before the image above with the Imaging System’s wide-angle camera on 13 November at 06:45 CET, the image is shown in a logarithmic scale to bring out details in the varying light intensity. As a result the scene looks roughly the same as the human eye would see it.

Clouds in an anticyclone over the South Pacifi in greyscale. Credit: ESA

Clouds in an anticyclone over the South Pacifi in greyscale. Credit: ESA

The same area in the South Pacific imaged with the orange filter of the narrow-angle camera in a logarithmic intensity scale.

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