Pick of the Week
CME and Radio Burst (May 8, 2009)
The STEREO spacecraft observed a substantial coronal mass ejection (CME) that was ejected into space (May 5, 2009). The force of the CME also generated a large Type II radio burst...
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OUTREACH SPOTLIGHT
Solar sidewalk astronomy
Sidewalk astronomy is an informal way of bringing the universe to your community. On a sunny day...
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Hot Shots from SOHO
SOHO celebrates 1500th comet discovery
It's the most successful comet catcher in history. SOHO has just reached a new milestone: It has discovered its 1500th comet, making it more successful than all the other discoverers of comets throughout history put together...
100 Hours of Astronomy
Around the World in 80 Telescopes
"Around the World in 80 Telescopes" is a unique live 24-hour webcast, following night and day around the globe to some of the most advanced observatories both on and off the planet. You can watch it right here on the 100HA website...
the sun now |
sunspots |
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spaceweather |
estimated Kp |
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solar wind | |
At 16:42 UT | |
Speed: 322 km/s | |
Density: 1.40 p/cm3 |
best of soho | ||