Status Report

SOHO Pick of the Week: Arching Eruptive Prominence

By SpaceRef Editor
June 14, 2002
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  • Higher resolution version (TIF, 5.4M)

    A long, arching, solar prominence in extreme ultraviolet light
    (ionized helium at 304Å) is seen erupting from the Sun on 9 June
    2002. This is certainly one of the largest prominences ever observed
    by SOHO. Prominences are huge clouds of relatively cool, dense plasma
    suspended in the Sun’s hot, tenuous corona. Magnetic fields built up
    enormous forces that propelled particles out beyond the Sun’s
    surface. Emission in this spectral line shows the upper chromosphere
    at a temperature of about 60,000 degrees K. For a sense of scale, the
    prominence extends over approximately 50 Earths from end to end. A
    fleeting phenomenon, it had disappeared by the time the next image in
    this wavelength was taken about 6 hours later.

    Previous Picks of the Week

    SOHO began its Weekly Pick some time after
    sending a weekly image or video clip to the American Museum of
    Natural History (Rose Center) in New York City. There, the SOHO Weekly Pick is displayed with some annotations on a large plasma display.

    If your institution would also like to receive the same Weekly Pick from us
    for display (usually in Photoshop or QuickTime format), please send
    your inquiry to

  • SpaceRef staff editor.