ESA: In the Shadows of Saturn’s Rings

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ESA: In the Shadows of Saturn’s Rings

Post by bystander » Tue Jun 19, 2012 9:52 pm

In the Shadows of Saturn’s Rings
ESA Space Science IOTW | 2012 June 18

Titan appears to be strung like a bead on Saturn’s rings, which cast shadows onto the southern hemisphere of the gas giant in this beautiful image from Cassini.

Faint but exquisite detail in the gas giant’s upper atmosphere paints a tranquil scene. A thin band of bright white ammonia ice clouds is etched into the planet’s disc towards the top of the image while clouds dotted below are faded scars of a huge storm that raged across the planet through much of 2011.

Shadows cast by Saturn’s iconic rings appear painted onto the planet’s southern hemisphere in two thick bands broken by thin, lighter stripes, reflecting the intricacies of the individual rings.

As Saturn’s seasons progress towards northern hemisphere summer, the rings will appear to grow wider and wider.

Meanwhile Titan, Saturn’s largest moon, appears to hang on the planet’s rings like a bead on a necklace. The effect is a result of the line-of-sight viewing position; Titan orbits Saturn at an average distance of 1, 221, 870 km.

The moon is an enigma in itself – cloaked in a thick nitrogen-rich atmosphere, it is the only moon in the Solar System that has a dense atmosphere. Lakes of liquid hydrocarbons pool on its surface, and an active methane cycle plays a similar role to Earth’s water cycle, complete with clouds and methane rain.

Cassini has been in orbit around Saturn since 2004 and is now in its second extended mission phase, the Cassini Solstice Mission, which will continue until 2017.

Credits: NASA/JPL-Caltech/Space Science Institute/J. Major ... 394023480/

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Re: ESA: In the Shadows of Saturn’s Rings

Post by geckzilla » Wed Jun 20, 2012 3:01 am

In color, even! A bit funky on the limb of Saturn where some of the channels didn't line up, though.
Just call me "geck" because "zilla" is like a last name.

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Re: ESA: In the Shadows of Saturn’s Rings

Post by owlice » Wed Jun 20, 2012 7:04 am

A closed mouth gathers no foot.

Ian Regan

Re: ESA: In the Shadows of Saturn’s Rings

Post by Ian Regan » Tue Jul 03, 2012 11:00 pm

This image was also processed by Gordan Ugarkovic over at the UMSF forums: ... ntry184238 ... ntry184237