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NASA: Skywatchers will be Able to See Jupiter’s Largest Moons Using Just Binoculars

Keep an eye on the sky this month as the mighty Jupiter puts on a show.

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FILE - The planet Jupiter is shown with one of its moons, Ganymede (bottom), in this NASA handout photo, April 9, 2007. VOA

Keep an eye on the sky this month as the mighty Jupiter puts on a show. NASA says Jupiter will make its closest approach to Earth in June — so close that skywatchers will be able to see it with the naked eye, and even some of its largest moons using simple equipment.

“The solar system’s largest planet is a brilliant jewel to the naked eye, but looks fantastic through binoculars or a small telescope, which will allow you to spot the four largest moons,” the U.S. space agency posted on its website. Some might also “glimpse a hint of the banded clouds” that surround the planet, NASA said.

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NASA says Jupiter will make its closest approach to Earth in June. Pixabay

The best opportunity will be Monday when Jupiter, Earth and Saturn all fall into a straight line, an annual event called “opposition.” From June 14 to 19, amateur astronomers can see a “beautiful lineup” of the moon, Jupiter and Saturn, which will change each night as the moon orbits Earth.

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“While you’re out marveling at this trio, there’s a really neat astronomy observation you can attempt yourself, just by paying attention to the moon’s movement from night to night,” the agency added on its website.

For those who would like an even closer look at the largest planet in our solar system, NASA suggests visiting its website for images sent back by Juno, the spacecraft currently orbiting Jupiter. (VOA)

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Saturn Transcends Jupiter for Becoming New Moon King

Saturn retains 20 New Moons, Surpasses Jupiter

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A team led by Scott S. Sheppard from Carnegie Institute of Science found 20 new moons orbiting Saturn. Pixabay

Saturn now has 82 moons – three more than Jupiter’s 79 moons – and each of the 20 newly-discovered Saturn moons is about five kms in diameter.

A team led by Scott S. Sheppard from Carnegie Institute of Science found 20 new moons orbiting Saturn. Seventeen of them orbit the planet backwards, or in a retrograde direction, meaning their movement is opposite of the planet’s rotation around its axis.

The other three moons orbit in the prograde — the same direction as Saturn rotates.

Two of the prograde moons are closer to the planet and take about two years to travel once around Saturn.

The more-distant retrograde moons and one of the prograde moons each take more than three years to complete an orbit.

“Studying the orbits of these moons can reveal their origins, as well as information about the conditions surrounding Saturn at the time of its formation,” said Sheppard.

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The new moons for Saturn were discovered using the Subaru telescope atop Mauna Kea in Hawaii. Pixabay

The new moons were discovered using the Subaru telescope atop Mauna Kea in Hawaii. The observing team included Sheppard, David Jewitt of University of California Los Angeles and Jan Kleyna of the University of Hawaii.

These moons may have once comprised a larger moon that was broken apart in the distant past.

“The fact that these newly discovered moons were able to continue orbiting Saturn after their parent moons broke apart indicates that these collisions occurred after the planet-formation process was mostly complete and the disks were no longer a factor,” Sheppard noted.

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Jupiter has 79 Moons, now 3 less than Saturn. Pixabay

The “retrograde” moons have similar inclinations to other previously known retrograde Saturnian moons, indicating that they are also likely fragments from a once-larger parent moon that was broken apart.

“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,” explained Sheppard.

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Last year, Sheppard discovered 12 new moons orbiting Jupiter and Carnegie hosted an online contest to name five of them.

“This time, the moons must be named after giants from Norse, Gallic, or Inuit mythology,” said Sheppard. (IANS)