It seems as the Halloween fever has not spared the sun even as the images from NASA reveals the Halloween spirit of the sun ahead of Halloween.
The combined images of the active regions that shows the sun dressed as Jack-o’-lantern. Jack-o’-lantern is a carved pumpkin, or turnip, that is basically linked with the holiday of Halloween. The image resembles a monstrous face that is carved out of the pumpkin’s rind to expose the hollow interior.
The sun’s images from Oct. 8 of two sets of light wavelengths, one at 171 and one at 193 angstroms, was combined in a composite photograph that gave the sun the look of a jack-o’-lantern.
The image at 171 Angstroms shows the sun’s atmosphere,its corona, when it is at peace. At 193 Angstroms, the images reveals a slightly hotter part of the corona and the hotter material of a solar flare.
The description on NASA’s website reads: “The active regions appear brighter because those are areas that emit more light and energy—markers of an intense and complex set of magnetic fields hovering in the sun’s atmosphere, the corona.”
The active regions shines more than the surrounding area as these areas emit more light and energy.
The images taken by NASA’s Solar Dynamics Observatory (SDO) were typically colorized in gold at 171 angstroms wavelength and yellow in the other one.
The SDO contains three instruments. The Helioseismic and Magnetic Imager, the Atmospheric Imaging Assembly and the Extreme ultraviolet Variability Experiment. The first one examines the magnetic field that is on the Sun’s surface. The Atmospheric Imaging Assembly is devised to analyze the solar corona, and it captures images 1.3 solar diameters in multiple wavelengths. The last instrument examines the changing Sun’s radiant energy spectrum and the its interaction with the environment.
The image appeared just post the blood moon appearance- the rare lunar eclipse seen on Oct 8 in North America.