Astronomy Picture of the Day
March 15, 2013

Tiny Telesto
Tiny Telesto

Credits: NASA/JPL/Space Science Institute - Credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/IPF

The NASA - Cassini Spacecraft passed within a cosmic "stone's throw" (---> meaning very close, in cosmic terms) from the Saturnian moon Telesto in October of the AD 2005, capturing this shot of this tiny Trojan moon. Telesto (which is approx. 24 Km, such as a little less than 15 miles across) appears to be mantled in fine, Icy (and/or "Dusty") Material, although a few shallow Impact Craters and some Rocky Outcrops (and/or large Boulders) are visible. Its smooth Surface does not appear to retain the record of intense cratering that most of Saturn's other moons possess.


The original image was taken in Polarized Green Light with the NASA - Cassini Spacecraft Narrow-Angle Camera on October 11, 2005, at a distance of approximately 14.500 Km (such as a little more than 9004 miles) from Telesto. The image scale is roughly 86 meters (283 feet) per pixel.


This picture (which is an Original NASA - CASSINI Spacecraft b/w frame published on the NASA - Planetary Photojournal with the ID n. PIA 07702) has been additionally processed and then colorized, according to an educated guess carried out by Dr Paolo C. Fienga (LXXT/IPF), in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - CASSINI Spacecraft and then looked outside, towards the Saturnian moon, Telesto), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team. Different colors, as well as different shades of the same color, mean, among other things, the existence of different Elements (Minerals) present on the Surface of Telesto, each having a different Albedo (---> Reflectivity) and Chemical Composition.



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