Innermost part of the corona is nearly white with small shift to green especially in active Of the light though Earth atmosphere which filters the shorter wavelengths more intensely than theįinally, the answer to the question "What is the color of solar corona?" is that the In the lower part the blue part of the spectrum is slightly suppressed. If we orient the image as it was observed in the sky, it is visible that The influence of relatively low altitude of the Sun above the horizon (22°) is worth mentioning too. Right side and on the left side of the processed image part. Too and it is probably responsible for the red-purple coloring which is slightly visible on the The F-corona, regarded as the continuation of the zodiacal light The red shift of the color in the radial direction is probablyĬaused by the increasing significance of the F-corona formed by dust particles scattering the More complicated is the interpretation of the red color which dominates the Obvious is the interpretation of the reddish-pink color of the prominences caused by prominent Images taken by our expedition using narrow band filters. Is without any doubt caused by Fe XIV " Coronium"Ĭolor visualizes areas of hot plasma with temperature of about 1.8 MK. The green color dominating the innermost part of the corona Finally the color saturation was increased 50×.įrom the physical point of view, the image processing suppressed the white color of photospheric To obtain precise color definition, moreover, blue color of the sky caused by Rayleigh scattering 23 images taken during the eclipseĪnd over two hundred calibration images (dark frames, flat-fields) were necessary to use in order It was not easy to create the image which is presented on this page.
Saturation enables detailed study of the color variation throughout the inner corona. Suppressing the white color component i.e. If we use the naturalĭefinition that photospheric light is white, we may distinguish very small but still well detectableĭifferences of solar corona coloring. Saturated the more critical is the precision of white color calibration. The less the color differs from white i.e. The problem is in the color perception by human vision which is dependent on the definition However bluish-white, yellowish-white or reddish-white are often reported
What is the color of the solar corona? The majority of people perceive the corona during eclipse as white Total Solar Eclipse 2008 image, Mongolia, True colors of solar corona True colors of solar corona
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