This composite image, composed of two images taken with Cassini's visual and infrared mapping spectrometer, shows a crescent view of Saturn's moon Titan.
The data were obtained during a flyby on July 22, 2006, at a distance of 15,700 kilometres from Titan. The image was constructed from images taken at wavelengths of 1.26 microns shown in blue, 2 microns shown in green, and 5 microns shown in red.
The image was generated using the 5 micron wavelength for red, the 2 micron wavelength for green and the 1.2 micron wavelength for blue. The clouds, are of the type seen previously and reported in the journal Science. The image shows the clouds spreading out along the 40-degree-south latitude line.
This image was taken at 160,000 kilometres from Titan.
The images show the reflection of sunlight on Titan's atmosphere at 2.8 microns, longer wavelengths than human eyes can detect. The image appears in false colour so that the highest reflection appears as a reddish hue. The vast ethane cloud can be seen in all images as a reddish band just north of 50 degrees latitude. The top of the image in panel D also shows a strong reflection off the limb of the planet (also reddish), which is caused by the lighting angle and does not indicate the presence of clouds.
Image (A) was taken on Dec. 13, 2004; image (B) on Aug. 22, 2005; image (C) on Aug. 21, 2005; and image (D) on Sept. 7, 2005.
The image was acquired by the Cassini radar instrument in synthetic aperture mode during a Sept. 7, 2006, flyby of Titan. The image is centred at 70 degrees west longitude, 10 degrees north latitude, and measures about 150 kilometres high by 190 kilometres wide. The smallest details in this image are about 500 meters across.
A new 35km diameter crater with a central peak has been found on Titan. Dr. Charles Wood of the Cassini RADAR team says that it is the youngest looking crater they have seen. The crater ejecta can be seen strewn on top of dune structures on the surrounding plains. JPL will announce the discovery later this week.