Saturn Surpasses Jupiter as Planet with Most Moons
Saturn Surpasses Jupiter as Planet with Most Moons
Saturn surpasses Jupiter after the discovery of 20 new moons
08 October, 2019, 12:42
The discovery images for the newly found very distant prograde moon of Saturn.
Saturn has broken a new solar system record with the discovery of 20 new moons circling it. Studying these moons can reveal information about their formation and about the conditions around Saturn at the time.
Depending on when you finished school, you might have learned that Jupiter or Saturn has the most moons.
Scientists discovered 20 previously unknown moons orbiting Saturn, which gives Saturn a grand total of 82 moons, flying past Jupiter's 79.
Sheppard says he thinks Saturn probably has 100 moons that are a kilometre in size or bigger, but astronomers may need to wait for the next generation of bigger, better telescopes to confirm them all. But 17 of the 20 have a retrograde orbit of Saturn, meaning they essentially orbit backwards from the planet and other moons. The other three moons orbit in the prograde-the same direction as Saturn rotates.
Two (in blue in the above illustration) are "prograde" moons, orbiting in the same direction as the closer moons.
One of the three newly discovered "prograde" moons has an orbital period of more than three Earth years, while the other two complete one lap every two years or so.
These moons have been alongside Saturn for a long time, it just took astronomers a long time to find them because they are so small.
The rules are fairly straight forward - the name for each moon must be that of a giant from mythology, and the name must come from the mythology of that moon's group.
Tunisians vote in parliamentary election Ennahdha and Qalb Tounes (Heart of Tunisia) - led by detained business tycoon Nabil Karoui - were both swift to claim victory. If no party emerges as the clear victor on Sunday, it could complicate the process of building a coalition government.
Police arrest climate action protesters blocking Bloor Viaduct Protester Elle van Zeeland told Dutch broadcaster NOS that the group is "staying here until the government meets its obligations". Several handcuffed themselves to a water tank to frustrate police. "I can not ignore this evolving health emergency".
'This kind of grouping of outer moons is also seen around Jupiter, indicating violent collisions occurred between moons in the Saturnian system or with outside objects such as passing asteroids or comets, ' said Sheppard. But the newly discovered moon is farther out than the others.
These inclinations suggest that the new moons could be chunks of ice and rock leftover from a larger moon that split apart in Saturn's past, Sheppard explained to The Register. This would have cause the newly-created moons to spiral into Saturn's atmosphere and be lost.
However, in the Solar System's youth, when Saturn was in the process of forming, a cloud, or "disc", of dust and gas surrounded the planet.
Carnegie Science's Scott Sheppard announced the discovery Monday, along with news of the contest.
In addition to Sheppard, the observing team included UCLA's David Jewitt and the University of Hawaii's Jan Kleyna.
Saturn. Credit: NASA/JPL-Caltech/Space Science Institute.
"We thought they were moons of Saturn, but we weren't able to get full orbits to determine this", said Dr Sheppard.
"These moons are the remnants of the objects that helped form the planets, so by studying them we are learning about what the planets formed from", Dr Sheppard wrote.
A new announcement from Scott Sheppard, an astronomer with the Carnegie Institution for Science, has crowned a new king, though - Saturn. The most extreme of these new moons, designated S5613a2 m, requires 1,413 days, or 5.3 years, to revolve around Saturn, making it the farthest known moon from the gas giant.
Two of the prograde moons were assigned to the Inuit group (shown in blue in the graphic above), the moons of which are named after Inuit mythology.
Katie Bouman has been celebrated as a female STEM icon this week after pictures of the black hole were made public. Bouman did not immediately respond to a request for comment, but told CNN , "No one of us could've done it alone.
Large parts of the railway network closed over the weekend because of the vandalism, while many shops and malls were shuttered. China has accused foreign governments, including Britain and the United States, of fanning anti-China sentiment.
In order to use Remote Play on your Android phone or tablet, you'll first have to wait for the 7.00 update to roll out this week. There's also a new voice-to-text accessibility feature that makes use of the second screen function on the PlayStation 4 app.
If there's any question facing Shields, it's how she'll come back from an injury that she described Thursday as a dislocated knee. Shields says she has not thought about when the match will be rescheduled. "I was so focused just on the fight".
Surviving the Aftermatch is set to launch in late 2020 for PlayStation 4, Xbox One and PC via both Steam and the Epic Games Store. Paradox Interactive has announced Surviving the Aftermath , the latest entry in its Surviving series following Surviving Mars .
As the night went on, New Democrat Leader Jagmeet Singh again made his position clear regarding his thoughts on Maxime Bernier. Trudeau has gained momentum since Scheer stumbled through a French-language debate on private channel TVA on Wednesday.
Revealing the secret to her look previous year , Tabar said most of it was down to her makeup and photoshop skills. She was also reported to weigh only 88lbs in an attempt to replicate Angelina's petite frame.
Abe said Trump agreed not to impose threatened "Section 232" tariffs on Japanese cars and parts on national security grounds. The pact also includes market-opening commitments on $40 billion worth of digital trade between the two countries.
To make matters worse, the trip cost the Tigers dearly, as they threw a drive-killing interception two plays later. He's been aided by an elite defense, namely that frightening line, but he is gaining confidence each week.
Despite India's huge population, precious few players of Indian descent have played in basketball's top professional league. They have become regular fixtures in England, China and Japan and are called the NBA Global Games.
Three Democratic committee chairmen demanded that Esper and Vought produce paperwork requested by Democrats by October 15. Zelensky later stated that Ukraine had no obligation to investigate or not to investigate a case involving Biden's son.
Apple could launch 16-inch MacBook, new iPad Pro this month
It is expected, Apple will launch its 16-inch MacBook Pro with similar specs like the traditional 15-inch MacBook Pro. A few days back, the company confirmed that it's bringing Pro Display XDR to MacBook lineup that supports 96W output.
Jennifer Aniston too 'busy' for love
Meanwhile, New Idea claimed that Jennifer Aniston and Brad Pitt have a secret daughter in the person of Cali Sheldon, 17. The Friends big 25th-anniversary celebration may be over, but Courteney Cox's love for her former costars is endless.
Nobel Prize in Medicine 2019
Mr Kaelin works at Harvard, Mr Semenza at Johns Hopkins University and Mr Ratcliffe is at the Francis Crick Institute in Britain. This year, winners for literature from both 2018 and 2019 will be announced on Thursday.
Typhoon could be quarter-final hopes in chaos
This is a significant change from Monday's forecast when the storm was expected to make landfall in Japan's far southwest. A World Rugby statement said: "We are monitoring Typhoon Hagibis, which is now developing off the south coast of Japan".
Trump Says Pelosi May Be Guilty of 'Treason'
Donald Trump on Sunday night accused House Speaker Nancy Pelosi of treason in yet another unhinged rant on Twitter. Giuliani also accused Schiff of trying to "inhibit" the former's ability to defend his client.
Surprise as new iPhone revealed in stunning leak
Nikkei Asian Review also anticipates the surge in iPhone orders, which is mostly driven by the iPhone 11 and iPhone 11 Pro . For the iPhone SE2, Kuo had predicted earlier in October that Apple will give the iPhone 8 a similar treatment.
PM won’t be forced to extend Brexit by post
The EU says that risks tying its hands while at the same time not providing any workable solution to keep the border open. Brussels opposes the plan, which would involve establishing a hard Irish border in the form of customs checks.