HINODE tagged posts

A new look at Sunspots

Scientists created light curves using the high-resolution images of the Sun to understand what a sunspot would look like on a distant star. They studied different layers of the Sun from the visible surface to the outer atmosphere using 14 different wavelengths, including the six shown here (top left to right: photosphere, magnetic flux of the photosphere, ultraviolet 304 angstroms; bottom left to right: ultraviolet 171 angstroms, ultraviolet 131 angstroms, x-ray).
Credits: NASA/SDO/JAXA/NAOJ/Hinode

NASA’s extensive fleet of spacecraft allows scientists to study the Sun extremely close-up — one of the agency’s spacecraft is even on its way to fly through the Sun’s outer atmosphere. But sometimes taking a step back can provide new insight.

In a new study, scientists looked at sunspots ...

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HINODE Captures record-breaking Solar Magnetic Field

Top: Visible light continuum image. Bottom: Magnetic field strength map. The color shows the field strength, from weak (cool colors) to strong (warm colors). Red indicates a location with a strength of more than 6,000 gauss (600 mT). Credit: NAOJ/JAXA

Top: Visible light continuum image. Bottom: Magnetic field strength map. The color shows the field strength, from weak (cool colors) to strong (warm colors). Red indicates a location with a strength of more than 6,000 gauss (600 mT). Credit: NAOJ/JAXA

Astronomers at the National Astronomical Observatory of Japan (NAOJ) using the HINODE spacecraft observed the strongest magnetic field ever directly measured on the surface of the Sun. Analyzing data for 5 days around the appearance of this record breaking magnetic field, the astronomers determined that it was generated as a result of gas outflow from one sunspot pushing against another sunspot.

Magnetism plays a critical role in various solar phenomena such as flares, mass ejections, flux ropes, and coronal heating...

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