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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

A Partial Eclipse of an Active Sun

Explanation: Watch for three things in this unusual eclipse video. First, watch for a big dark circle to approach from the right to block out more and more of the Sun. This dark circle is the Moon , and the video was made primarily to capture this partial solar eclipse last week . Next, watch a large solar prominence hover and shimmer over the Sun's edge . A close look will show that part of it is actually falling back to the Sun . The prominence is made of hot plasma that is temporarily held aloft by the Sun's changing magnetic field . Finally, watch the Sun's edge waver . What is wavering is a dynamic carpet of hot gas tubes rising and falling through the Sun's chromosphere -- tubes known as spicule s. The entire 4-second time-lapse video covers a time of about ten minutes, although the Sun itself is expected to last another 5 billion years .

Partial Solar Eclipse in October 2022: Notable Submissions to APOD

Date November 2, 2022
Credit Video Credit: Ralf Burkart ; h/t Maciej Libert ( AG )
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.