SDO 2014 spring eclipse season has begun

Twice every year, around the time of the equinoxes, Earth can pass directly between the Sun and NASA's Solar Dynamics Observatory (SDO), producing a series of beautiful eclipses. For the next 3 weeks the Earth will pass between SDO and the Sun around 07:30 UTC each morning.  These eclipses can last up to 72 minutes in the middle of an eclipse season.

SDO's first vernal eclipse season began on February 27, producing a near-total blackout of the sun.

SDO's AIA 193 image from first eclipse - we can see AR 1988 near the edge of the Earth, with a coronal hole just to the right. Active regions 1981-1984 are further to the right and are hardly affected by the Earth, although they soon disappear behind the Earth. (Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams)


Eclipses are one of SDO's largest data holes. But the orbit gives them 24/7 access to the data flow. So far SDO has received 98% of the data.

Featured image: First spring eclipse recorded by SDO's AIA 304 on February 27, 2014 at 07:29 UTC (Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams)


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