Work is ongoing on this topic. This figure was made by Geza Erdos of the KFKI in Budapest. It shows the polarity of the Sun's magnetic field as Ulysses travled from the south pole to the north pole. This image shows the magnetic field polarity that Ulysses measured while traveling from the South pole to the North pole of the Sun. Blue values represent regions where the magnetic field pointed toward the Sun , red where it pointed away.
Green lines represent the boundaries between the two hemispheres.
You can better understand this if you imagine the Sun having a huge bar magnet inside of it. Scientists are still working to better understand the magnetic field of the Sun. This figure was made by Geza Erdos of the KFKI in Budapest. It shows the polarity of the Sun's magnetic field as Ulysses travled from the south pole to the north pole. The Sun's Magnetic Field Polarity Ulysses is a spacecraft that is traveling around the Sun.