STRONG M-FLARE: Big sunspot AR1967 unleashed a strong M6-class solar flare on Jan. 30th at approximately 1617 UTC. The explosion, which may be seen at the end of this movie of today's solar eclipse, hurled a CME into space. Radio emissions from shock waves preceding the CME suggest that it could be leaving the sun faster than 2100 km/s (4.7 million mph). Stay tuned for updates about this potentially significant event.
LUNAR TRANSIT OF THE SUN: Earlier today, the Moon eclipsed the sun. No one on Earth saw it. The "lunar transit" was only visible from space. NASA's Solar Dynamics Observatory recorded the whole thing from geosynchronous orbit:
LUNAR TRANSIT OF THE SUN: Earlier today, the Moon eclipsed the sun. No one on Earth saw it. The "lunar transit" was only visible from space. NASA's Solar Dynamics Observatory recorded the whole thing from geosynchronous orbit:
At maximum eclipse as much as 90% of the sun was covered. SDO is solar powered, but it did not "brown out" because mission controllers put an extra charge on the spacecraft's batteries ahead of time.
Every year, SDO observes multiple lunar transits. This one, lasting almost 2.5 hours, was the longest in the history of the spacecraft's 4 year mission. www.spaceweather.com
Every year, SDO observes multiple lunar transits. This one, lasting almost 2.5 hours, was the longest in the history of the spacecraft's 4 year mission. www.spaceweather.com
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