Feeds

'Snowmageddon' on Saturn snapped by amateur stargazers

Gigantic ammonia blizzard storms of the ringed giant

Top 5 reasons to deploy VMware with Tegile

A tip-off from an amateur astronomer has enabled top planet-gazing boffins to probe a fearful ammonia snowstorm deep in the roiling atmosphere of Saturn, ringed giant world of the outer solar system.

The storm that Cassini caught. The red boxes are where the instrument looked. Credit: C Go/NASA

Cassini happened to be looking in the right place to catch this one.

The terrifically intense storm, according to NASA boffins studying it using the Cassini space probe in orbit around Saturn, churned seldom-seen phosphine up from the planet's internal deeps and chilled the base of the ringed giant's stratosphere visibly.

"A balloonist floating about 100 kilometers down from the bottom of Saturn's calm stratosphere would experience an ammonia-ice blizzard with the intensity of Snowmageddon," said Brigette Hesman, Cassini boffin.

"These blizzards appear to be powered by violent storms deeper down - perhaps another 100 to 200 kilometers down - where lightning has been observed and the clouds are made of water and ammonia."

Another storm snapped by Anthony Wesley from Australia. Credit: A Wesley

The one that got away.

But the Cassini brainboxes would never have realised that their instruments had scanned the storm without the help of amateur sky-watchers peering through their home telescopes. It was a picture from Christopher Go, who lives in the Philippines, which tipped the NASA scientists off regarding the storm. The pic was sent in by Go's fellow enthusiast Anthony Wesley - who last year was the first to detect an impact spot on Jupiter.

"We were so excited to get a heads-up from the amateurs," said Gordon Bjoraker, a boffin. "Data from the storm cell would have been averaged out [if they hadn't given us the nod]."

A NASA statement describes the Cassini snowstorm scoop as "the most detailed data to date" on Saturnian storms. ®

Beginner's guide to SSL certificates

More from The Register

next story
PORTAL TO ELSEWHERE scried in small galaxy far, far away
Supermassive black hole dominates titchy star formation
Boffins say they've got Lithium batteries the wrong way around
Surprises at the nano-scale mean our ideas about how they charge could be all wrong
Edge Research Lab to tackle chilly LOHAN's final test flight
Our US allies to probe potential Vulture 2 servo freeze
Europe prepares to INVADE comet: Rosetta landing site chosen
No word yet on whether backup site is labelled 'K'
Cracked it - Vulture 2 power podule fires servos for 4 HOURS
Pixhawk avionics juice issue sorted, onwards to Spaceport America
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.