Astronomy Picture of the Day

   [1]Discover the cosmos! Each day a different image or photograph of our
      fascinating universe is featured, along with a brief explanation
                    written by a professional astronomer.

                              2020 February 25

         IFRAME: [2]https://www.youtube.com/embed/-N7nRh5v1Iw?rel=0

                     Jupiter's Magnetic Field from Juno
    Video Credit: [3]NASA, [4]JPL-Caltech, [5]Harvard U., [6]K. Moore et
                                     al.

   Explanation: How similar is Jupiter's magnetic field to Earth's? NASA's
   robotic [7]Juno spacecraft has found that Jupiter's magnetic field is
   [8]surprisingly complex, so that the [9]Jovian world does not have
   single magnetic poles like our [10]Earth. A snapshot of [11]Jupiter's
   magnetic field at one moment in time, as animated from Juno data,
   appears in the [12]featured video. Red and blue colors depict
   [13]cloud-top regions of strong positive (south) and negative (north)
   magnetic fields, respectively. Surrounding the planet are imagined
   lines of constant [14]magnetic field strength. The first sequence of
   the animated video starts off by showing what appears to be a
   relatively [15]normal dipole field, but soon a [16]magnetic region now
   known as the Great Blue Spot rotates into view, which is not directly
   aligned with [17]Jupiter's rotation poles. Further, in the second
   sequence, the [18]illustrative animation takes us over one of Jupiter's
   spin poles where red magnetic hotspots are revealed to be extended and
   sometimes even annular. A better understanding of [19]Jupiter's
   magnetic field may give clues toward a better understanding of
   [20]Earth's [21]enigmatic planetary [22]magnetism.

                       Tomorrow's picture: planet lost
     __________________________________________________________________

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    Authors & editors: [34]Robert Nemiroff ([35]MTU) & [36]Jerry Bonnell
                                 ([37]UMCP)
          NASA Official: Phillip Newman [38]Specific rights apply.
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                A service of: [40]ASD at [41]NASA / [42]GSFC
                           & [43]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://www.youtube.com/embed/-N7nRh5v1Iw?rel=0
   3. https://www.nasa.gov/
   4. https://www.jpl.nasa.gov/
   5. https://eps.harvard.edu/
   6. https://scholar.harvard.edu/planets/home
   7. https://www.nasa.gov/mission_pages/juno/spacecraft/index.html
   8. https://www.pbs.org/wgbh/nova/article/jupiter-wandering-magnetic-field/
   9. https://solarsystem.nasa.gov/planets/jupiter/overview/
  10. https://solarsystem.nasa.gov/planets/earth/overview/
  11. https://en.wikipedia.org/wiki/Magnetosphere_of_Jupiter
  12. https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA23229
  13. https://apod.nasa.gov/apod/ap190908.html
  14. https://en.wikipedia.org/wiki/Magnetic_field
  15. https://en.wikipedia.org/wiki/Magnetic_dipole
  16. https://apod.nasa.gov/apod/ap160406.html
  17. https://apod.nasa.gov/apod/ap100124.html
  18. https://www.youtube.com/watch?v=-N7nRh5v1Iw
  19. https://www.nasa.gov/feature/jpl/nasas-juno-finds-changes-in-jupiters-magnetic-field
  20. https://apod.nasa.gov/apod/ap021125.html
  21. https://i.pinimg.com/originals/70/ce/c3/70cec30919aefe50ada3bd8e0e6239e6.jpg
  22. https://www.nasa.gov/sites/default/files/thumbnails/image/geomagnetic-field-orig_full.jpg
  23. https://apod.nasa.gov/apod/ap200224.html
  24. https://apod.nasa.gov/apod/archivepix.html
  25. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  26. https://apod.nasa.gov/apod/lib/aptree.html
  27. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  28. https://apod.nasa.gov/apod/calendar/allyears.html
  29. https://apod.nasa.gov/apod.rss
  30. https://apod.nasa.gov/apod/lib/edlinks.html
  31. https://apod.nasa.gov/apod/lib/about_apod.html
  32. http://asterisk.apod.com/discuss_apod.php?date=200225
  33. https://apod.nasa.gov/apod/ap200226.html
  34. http://www.phy.mtu.edu/faculty/Nemiroff.html
  35. http://www.phy.mtu.edu/
  36. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  37. http://www.astro.umd.edu/
  38. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  39. https://www.nasa.gov/about/highlights/HP_Privacy.html
  40. https://astrophysics.gsfc.nasa.gov/
  41. https://www.nasa.gov/
  42. https://www.nasa.gov/centers/goddard/
  43. http://www.mtu.edu/