Solar Flares

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About this Image

These four images are combined radio-optical images of a large solar flare that occurred on 17 June 1989. The red-orange background images are optical images (H-Alpha) and the superimposed contours show radio emission as seen with the VLA at a wavelength of 4.9 GHz. The four images are from four different times during the event, showing the progression toward maximum radio emission (bottom right). This soft X-ray flare was accompanied by a coronal mass ejection.

Investigator(s):  A. Kiplinger (H-alpha) and T. Bastian (VLA)

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Technical Data

    Telescope VLA 
    Date of Observation 1989-07-17 
    Type of Observation Continuum Observations 
    Band C 
    Wavelength 6 cm 
    Frequency 5.0 GHz 
    Field of View 0.0300 x 0.0300 degrees  
    Technical Caption  


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