‘Oddball’ among 12 new moons discovered around Jupiter
18 July, 2018, 08:50 | Author: Darnell Taylor
Researchers in the U.S. stumbled upon the new moons while hunting for a mysterious ninth planet that is postulated to lurk far beyond the orbit of Neptune, the most distant planet in the solar system.
As part of that search, Sheppard was using the 4-meter Víctor Blanco Telescope in Chile in March of a year ago and realized that Jupiter was right near the part of the sky he wanted to search.
Because Jupiter moves across the sky at a known speed, anything nearby moving at the same speed in the same direction becomes a candidate for a moon - but confirmation is a time-consuming process, Sheppard explained to ScienceAlert.
Two of the new moons are part of an inner group of moons closer to Jupiter that orbit in prograde, or the same direction as the planet's rotation. "We think they're something in between the rocky asteroids, which are interior to Jupiter, and the icy comets, which are exterior to Neptune", Sheppard says. Until the announcement this morning by the International Astronomical Union of the discovery of an additional 10 moons about the gas-giant planet.
The researchers believe the oddball may be a leftover fragment from a larger prograde moon that split apart from repeated collisions.
This new "oddball" moon is more distant and more inclined than the prograde group of moons and takes about one and a half years to orbit Jupiter. The moons orbit in three different groupings and are thought to be the remnants of three bodies that were broken apart in earlier collisions. "What these other objects were has been a mystery".
Eleven of the twelve new moons follow these conventions, but Valetudo is the odd one out.
Two of them are pretty straightforward. The other three are prograde, which orbit in the same direction. TheyÂre calling one moon an ÂoddballÂ because of its unusual orbit.
New christening photo of Prince Louis released
Add Royal Family as an interest to stay up to date on the latest Royal Family news, video, and analysis from ABC News. The candid photograph shows a glowing Kate Middleton cradling her youngest son - a grinning Prince Louis .
Liverpool make £62m bid for Roma goalkeeper Alisson
Karius found out two weeks later that he had suffered concussion in the game following a collision with Sergio Ramos. But they have now made a decision to swoop for the shot stopper, who they have been watching for over 12 months.
This illustration shows the newly discovered moons of Jupiter and their orbits.
Astronomers have proposed the name "Valetudo" for the oddball moon, after the Roman god Jupiter's great-granddaughter, the goddess of health and hygiene.
Nine of the new moons are in a group of more distant moons in prograde orbits. Sheppard realized a year ago that the team's search zone for a ninth planet overlapped with Jupiter's orbit. "And that's very bad, because head-on collisions are likely to happen".
This orbital arrangement means Jupiter appears as the largest disc in the sky and will be visible from sundown to sunrise.
If these raw materials had still been present when Jupiter's first moons collided to form its current clusters, the drag exerted on the smaller ones would have made them spiral inwards.
According to Horner, if Valetudo had formed early on, it would have been slowed by the gas and dust present at the formation of Jupiter, and fallen into the planet.
Which raises the question of how long the tiny moon has left. By contrast, retrograde moons were probably objects that once were wandering around the solar system and got snared by Jupiter's gravity.
The team's results are not yet available in a peer-reviewed journal, as Sheppard's team is now running supercomputer simulations to try and figure out how often Valetudo might collide with a retrograde moon.
However there was a shortage of available accommodation around the airport. "Ryanair sincerely apologises for any inconvenience". Oxygen masks dropped and lights went out within the cabin and the pilots carried out a "controlled descent".
With the Blues prepared to gazump Liverpool's offer, they could yet win the race with Roma hoping for a bidding war. He has two years left on his contract with Chelsea , but he has indicated a desire to move on for a new challenge.
However, a spokesperson from the Palace denied the pair were snubbing Trump - insisting they were never part of any meeting plans. A royal source told the: 'This business of Prince Charles and William not being there for the Trump visit was a snub.
He later went on to say that before the meeting, the United States relationship with Russian Federation was a "potential problem". His skepticism drew a quick formal statement - nearly a rebuttal - from Trump's director of national Intelligence, Dan Coats .
Police said they did not know exactly how the incident happened and there were no updates on Ms Reynolds' condition . The umbrella went entirely through her ankle and first responders had to use a bolt cutter to free her, police say.
Seven protesters were injured in Basra, an important oil port that accounts for more than 95 percent of Iraq's oil revenue. Yet, it remains underdeveloped and has suffered from chronic power outages, poor water quality and uncollected waste.
By Monday night, Amazon had addressed the majority of its tech issues, which impacted both the desktop site and mobile app. Amazon said it expected only a fraction of its 12,000 workers in Germany across its six sites to join the strike.
But one MP told AFP they would likely not push it to a vote on Monday, instead waiting to see what the eurosceptics do. He added: "I can not tell the people of WOxon [West Oxfordshire] that I support the proposals in their current form".
It will still use the light ammunition type. "Two new weapons make their way into Save the World and Battle Royale ". These llamas are exceptionally hard to find during a game of Fortnite , but find one and it will be worth your time.
Leonard and Popovich reportedly met in San Diego days later to determine if the two sides could fix the relationship. Leonard was one of 35 players invited to participate in the camp , which will be led by Spurs coach Gregg Popovich.
Chelsea to re-sign Cech when Courtois joins Real Madrid
Meanwhile, at Chelsea , Thibaut Courtois looks to be on his way out of the club as he nears his desired move to Real Madrid . Chelsea sold the 36-year-old to the Gunners for around £10 million three years ago after losing his place to Courtois.
Chennai: Hearing-impaired minor gang raped for 7 months
The complainant told the police that Ravi, a 66-year-old elevator operator, first sexually assaulted her over seven months ago. Police have arrested the development's security guard, lift operator and water supply controller among other suspects.
Texas house guest 'bit off and swallowed woman's nose'
Doctors told Tatiana she needs to have the surgery within two weeks, or it will become more complicated as the wound heals. Collins, seen at right, was released from custody after posting $1000 bond on the misdemeanor charge.
Obama Urges World to Follow Mandela's Example
He said there is evidence of continued racism in both the US and South Africa despite Mandela's 67 years in confronting the issue. He closed with a call to action: "I say if people can learn to hate, they can be taught to love".
Papa John evicted from office at company's headquarters
And I think, again I don't care if the setting was confidential or not, it hurt somebody's feelings, ' Schnatter said. Schnatter is no longer a spokesperson for the company or the brand", Papa John's said in a statement .
Usain Bolt to make run at pro soccer in Australia
It read: "The Central Coast Mariners would like to publicly address the negotiations between the Club and Usain Bolt ". The fastest man in the world is set to undergo a six-week trial with the Central Coast Mariners.