Announcement

Collapse
No announcement yet.

Giant planet around tiny star 'should not exist'

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Giant planet around tiny star 'should not exist'

    Astronomers have discovered a giant planet that, they say, should not exist, according to current theories.

    The Jupiter-like world is unusually large compared with its host star, contradicting a widely held idea about the way planets form.

    The star, which lies 284 trillion km away, is an M-type red dwarf - the most common type in our galaxy.

    An international team of astronomers has reported its findings in the journal Science.

    "It's exciting because we've wondered for long a time whether giant planets like Jupiter and Saturn can form around such small stars," said Prof Peter Wheatley, from the University of Warwick, UK, who was not involved with the latest study.

    "I think the general impression had been that these planets just didn't exist, but we couldn't be sure because small stars are very faint, which makes them difficult to study, even though they are much more common than stars like the Sun," he told BBC News.

    Researchers used telescopes in Spain and the US to track gravitational accelerations of the star that might be caused by planets orbiting it.

    The red dwarf has a larger mass than its orbiting planet - named GJ 3512b. But the difference in their size is much smaller than it is between, say, the Sun and Jupiter.

    The distant star has a mass that's, at most, 270 times larger than the planet. For comparison, the Sun is about 1,050 times more massive than Jupiter.
    https://www.bbc.com/news/science-environment-49855058
    Attached Files
    01000010 01100001 01100001 00100000 01110111 01100101 01100101 01110000 00100000 01100111 01110010 01100001 01101000 01101110 01100001 00100000 01110111 01100101 01100101 01110000 00100000 01101110 01101001 01101110 01101110 01111001 00100000 01100010 01101111 01101110 01100111

  • #2
    Time for a planetary diet!
    "Whenever you find yourself on the side of the majority, it is time to pause and reflect." –Mark Twain

    Comment


    • #3
      It's probably just a binary star, with a failed star. Kinda like Jupiter.
      01000010 01100001 01100001 00100000 01110111 01100101 01100101 01110000 00100000 01100111 01110010 01100001 01101000 01101110 01100001 00100000 01110111 01100101 01100101 01110000 00100000 01101110 01101001 01101110 01101110 01111001 00100000 01100010 01101111 01101110 01100111

      Comment


      • #4
        Scientist should be more careful with how they present things.

        Pete (hates to feed the "scientists don't know anything" crowd more meat)

        Comment

        Working...
        X

        Debug Information