Stories
Slash Boxes
Comments

SoylentNews is people

posted by Fnord666 on Wednesday October 09 2019, @11:46AM   Printer-friendly
from the luna_1-luna_2-Luna3-etc dept.

Saturn overtakes Jupiter as planet with most moons

Saturn has overtaken Jupiter as the planet with the most moons, according to US researchers. A team discovered a haul of 20 new moons orbiting the ringed planet, bringing its total to 82; Jupiter, by contrast, has 79 natural satellites. The moons were discovered using the Subaru telescope on Maunakea, Hawaii.

Each of the newly discovered objects in orbit around Saturn is about 5km (three miles) in diameter; 17 of them orbit the planet "backwards". This is known as a retrograde direction. The other three moons orbit in a prograde direction - the same direction as Saturn rotates. Two of the prograde moons take about two years to travel once around the ringed planet. The more-distant retrograde moons and one of the prograde moons each take more than three years to complete an orbit.

Name the moons. Full list.

Also at Carnegie Science.


Original Submission

This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
(1)
  • (Score: 2) by JoeMerchant on Wednesday October 09 2019, @12:36PM (11 children)

    by JoeMerchant (3937) on Wednesday October 09 2019, @12:36PM (#904673)

    That's no moon...

    --
    🌻🌻 [google.com]
    • (Score: 2) by DannyB on Wednesday October 09 2019, @01:36PM (10 children)

      by DannyB (5839) Subscriber Badge on Wednesday October 09 2019, @01:36PM (#904704) Journal

      What qualifies as a moon anyway?

      3 miles diameter might be big enough for a robot to plant a teeny tiny flag on. But whose flag? SpaceX, Microsoft, Amazon, Coke?

      Being in retrograde orbit may enable being able to bypass multi factor authentication even if the FIB doesn't warn about it.

      Sputnik was called "a moon" and it was a bit smaller than 3 miles diameter.

      Time for some caffeine.

      --
      The lower I set my standards the more accomplishments I have.
      • (Score: 1) by nitehawk214 on Wednesday October 09 2019, @02:29PM (3 children)

        by nitehawk214 (1304) on Wednesday October 09 2019, @02:29PM (#904717)

        Sputnik was only called a moon by the media, it is not just today that science reporting in the media is completely garbage.

        --
        "Don't you ever miss the days when you used to be nostalgic?" -Loiosh
        • (Score: 2) by DannyB on Wednesday October 09 2019, @02:51PM (1 child)

          by DannyB (5839) Subscriber Badge on Wednesday October 09 2019, @02:51PM (#904733) Journal

          But science can be controversial, and the media will cover that. Even manufacture it.

          You can't say the sun rises in the East! FoxNews has a list of experts who claim the sun rises in the West! So it is controversial and not established fact!

          CO2 levels are not rising, despite measurements. The climate is not changing, despite measurements -- because controversy!

          --
          The lower I set my standards the more accomplishments I have.
          • (Score: 2) by HiThere on Wednesday October 09 2019, @05:50PM

            by HiThere (866) Subscriber Badge on Wednesday October 09 2019, @05:50PM (#904818) Journal

            AFAIKT, the sun doesn't rise in the East, it rises somewhere a bit South of East. I suspect, however, that Australian observers would differ with me.

            --
            Javascript is what you use to allow unknown third parties to run software you have no idea about on your computer.
        • (Score: 0) by Anonymous Coward on Wednesday October 09 2019, @07:17PM

          by Anonymous Coward on Wednesday October 09 2019, @07:17PM (#904854)

          You're right, they should have called it after one of the many other things orbiting the Earth at the time.

      • (Score: 4, Funny) by bzipitidoo on Wednesday October 09 2019, @03:11PM (2 children)

        by bzipitidoo (4388) on Wednesday October 09 2019, @03:11PM (#904742) Journal

        Clearly we need a new category: dwarf moon.

        • (Score: 2) by DannyB on Wednesday October 09 2019, @04:00PM

          by DannyB (5839) Subscriber Badge on Wednesday October 09 2019, @04:00PM (#904773) Journal

          Also dwarf moon headed the wrong direction in life.

          --
          The lower I set my standards the more accomplishments I have.
        • (Score: 2) by JoeMerchant on Wednesday October 09 2019, @05:33PM

          by JoeMerchant (3937) on Wednesday October 09 2019, @05:33PM (#904812)

          I suggested Gimli as a name...

          --
          🌻🌻 [google.com]
      • (Score: 2) by Immerman on Wednesday October 09 2019, @06:41PM

        by Immerman (3985) on Wednesday October 09 2019, @06:41PM (#904836)

        moon - a celestial body that orbits a (major or minor) planet.
        celestial body - natural objects visible in the sky

        So no explicit size limit, but artificial satellites are excluded.

        Of course, without a size limit any pebble could be considered a moon - but only if it's visible in the sky. Sky generally atmosphere - probably Earth's - and the distortion probably sets some definite lower limit on the apparent angular size of a celestial body.

        Alternately it might be interpreted as "would this object be visible to the naked eye from the ground/atmosphere surface of its primary" - though of course that includes lots of assumptions about the eyes of the observer.

      • (Score: 2) by All Your Lawn Are Belong To Us on Thursday October 10 2019, @11:09PM

        by All Your Lawn Are Belong To Us (6553) on Thursday October 10 2019, @11:09PM (#905452) Journal

        Time for some caffeine.

        I agree. Hmmm..... I think I'll have a Coke. And then order a SpaceX model on Amazon using Microsoft Edge. Maybe then buy a used Saturn and I'll then get a movie starring Sam Rockwell if I can find an appropriate one.
        I have the best original thoughts!

        --
        This sig for rent.
      • (Score: 2) by All Your Lawn Are Belong To Us on Thursday October 10 2019, @11:16PM

        by All Your Lawn Are Belong To Us (6553) on Thursday October 10 2019, @11:16PM (#905455) Journal

        What qualifies as a moon anyway?

        Both buttocks and at least 30% visiblity of the gluteal cleft. With intentional display (cf. Gluteus Plumbarius, "Moonlet"). Bonus points if the barycenter also qualifies as bariatric.

        --
        This sig for rent.
  • (Score: -1, Redundant) by Anonymous Coward on Wednesday October 09 2019, @12:38PM (7 children)

    by Anonymous Coward on Wednesday October 09 2019, @12:38PM (#904676)

    Oblig...

    Also, ur anus.

    • (Score: 2) by DannyB on Wednesday October 09 2019, @01:30PM (6 children)

      by DannyB (5839) Subscriber Badge on Wednesday October 09 2019, @01:30PM (#904701) Journal

      That adolescent joke is old. Adults pronounce the planet correctfully as: URINE-us.

      Please, no snickering in the peanut gallery.

      --
      The lower I set my standards the more accomplishments I have.
      • (Score: 1) by nitehawk214 on Wednesday October 09 2019, @02:34PM (2 children)

        by nitehawk214 (1304) on Wednesday October 09 2019, @02:34PM (#904721)
        --
        "Don't you ever miss the days when you used to be nostalgic?" -Loiosh
        • (Score: 2) by DannyB on Wednesday October 09 2019, @02:55PM (1 child)

          by DannyB (5839) Subscriber Badge on Wednesday October 09 2019, @02:55PM (#904735) Journal

          Too bad Agena was lost when the thruster defect was in the capsule.

          Are two stars enough to be called a constellation? How about only one star?

          --
          The lower I set my standards the more accomplishments I have.
      • (Score: 2) by Rupert Pupnick on Wednesday October 09 2019, @02:54PM (1 child)

        by Rupert Pupnick (7277) on Wednesday October 09 2019, @02:54PM (#904734) Journal

        Best to avoid any offense by simply referring to it as The Other Neptune.

        • (Score: 0) by Anonymous Coward on Wednesday October 09 2019, @11:14PM

          by Anonymous Coward on Wednesday October 09 2019, @11:14PM (#904948)

          Just change the name to urectum and people will stop the adolescent jokes.

      • (Score: 1, Interesting) by Anonymous Coward on Wednesday October 09 2019, @05:38PM

        by Anonymous Coward on Wednesday October 09 2019, @05:38PM (#904814)
        Odd that it's the only planet that was given the original Greek god's name, rather than the Roman equivalent. Mercury (Hermes), Venus (Aphrodite), Mars (Ares), Jupiter (Zeus), Saturn (Cronus), and Neptune (Poseidon) are all the Roman names of the corresponding Greek gods. The Greek god Ouranos has the corresponding Roman name Caelus but for some reason the latter name was not used and the Latinised version of Ouranos, Uranus, was used instead.
  • (Score: -1, Redundant) by Anonymous Coward on Wednesday October 09 2019, @12:42PM (1 child)

    by Anonymous Coward on Wednesday October 09 2019, @12:42PM (#904678)

     

  • (Score: 2) by DannyB on Wednesday October 09 2019, @02:47PM (1 child)

    by DannyB (5839) Subscriber Badge on Wednesday October 09 2019, @02:47PM (#904731) Journal

    Most objects would spiral into the planet and help form the planet itself. But we think these objects were captured right when the gas and dust started dissipating. So they were captured into orbits around the planet rather than falling into the planet. We think these are the last remnants of what formed [Saturn].

    Given that Saturn has very low density, it would seem that any solid core would necessarily be quite small compared to the gas giant's size. But from another source: [space.com]

    "Like Jupiter, Saturn is suspected to have a rocky core surrounded by hydrogen and helium. However, the question of how solid the core might be is still up for debate. Though composed of rocky material, the core itself may be liquid"

    So how would solid objects from a young solar system interact with a liquid core, if the core were indeed liquid? Would they dissolve, or could a solution be formed? Liquid on the rocks?

    be grouped into three distinct clusters, based on the inclinations

    We should not be judgemental of their natural inclinations even when most are inclined differently.

    These bigger objects were smashed

    The intoxicated ones are orbiting in the wrong direction. Hmmm, liquid core?

    These moons have fairly inclined orbits to Saturn and are pretty far out

    I think that expression should stay in the 1960's / 70's.

    in the Solar System's youth, . . . these bodies ended up spiralling [sic] into the planet and becoming part of it.

    When young bodies get too close you can't tell where one ends and the other begins. And they might become unable to separate. Even if the other bodies suggest they should separate.

    The team has initiated a contest to name the moons. They have to be named after giants from Norse, Gallic or Inuit mythology, corresponding to the three different clusters.

    Maybe we need a new SN poll?

    Name them after GitHub projects. Or Microsoft operating systems.

    --
    The lower I set my standards the more accomplishments I have.
    • (Score: 1) by In hydraulis on Wednesday October 09 2019, @04:54PM

      by In hydraulis (386) on Wednesday October 09 2019, @04:54PM (#904788)

      But no matter how hard he reached, no matter how desperately he cued the audience, nobody laughed.

  • (Score: 0) by Anonymous Coward on Wednesday October 09 2019, @09:30PM

    by Anonymous Coward on Wednesday October 09 2019, @09:30PM (#904908)

    is the way it is reported.
      "Saturn has overtaken Jupiter as the planet with the most moons, according to US researchers."
    Have they been thinking too much about if a tree falls in a forest and nobody is there does it make a sound? They could have written "known moons" but they didn't, this is deliberate.

  • (Score: 0) by Anonymous Coward on Wednesday October 09 2019, @11:10PM

    by Anonymous Coward on Wednesday October 09 2019, @11:10PM (#904945)

    Those are dwarf moons. Not real moons because we just can't emotionally handle the existence of twenty more moons. So let's just arbitrarily redefine moon and call the rest dwarf moons.

(1)