Astronomy Picture of Day: At the Edge of Sun# Astronomy - 天文
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At the Edge of the Sun
Credit & Copyright: Stefan Seip (AstroMeeting)
Explanation: Dramatic prominences can sometimes be seen looming just beyond the edge of
the sun. A solar prominence is a cloud of solar gas held just above the surface by the Sun's
magnetic field. The Earth would easily fit below the prominence on the left. A quiescent
prominence typically lasts about a month, and may erupt in a Coronal Mass Ejection (CME)
expelling hot gas into the Solar System. Although very h
Credit & Copyright: Stefan Seip (AstroMeeting)
Explanation: Dramatic prominences can sometimes be seen looming just beyond the edge of
the sun. A solar prominence is a cloud of solar gas held just above the surface by the Sun's
magnetic field. The Earth would easily fit below the prominence on the left. A quiescent
prominence typically lasts about a month, and may erupt in a Coronal Mass Ejection (CME)
expelling hot gas into the Solar System. Although very h