Daily Sun: 26 Dec 11
New sunspot 1387 is crackling with M-class flares. Credit: SDO/HMI
Sunspot number: 110
What is the sunspot number?
Updated 25 Dec 2011
Spotless Days
Current Stretch: 0 days
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)
Since 2004: 821 days
Typical Solar Min: 486 days
Updated 25 Dec 2011
The Radio Sun
10.7 cm flux: 143 sfu
explanation | more data
Updated 25 Dec 2011
Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 0 quiet
24-hr max: Kp= 0 quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 2.1 nT
Bz: 1.3 nT north
explanation | more data
Updated: Today at 0426 UT
Coronal Holes: 26 Dec 11
A solar wind stream flowing from this coronal hole could reach Earth between Dec. 28th and 30th. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2011 Dec 26 2200 UTC
FLARE 0-24 hr 24-48 hr
CLASS M 70 % 70 %
CLASS X 10 % 10 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2011 Dec 26 2200 UTC
Mid-latitudes 0-24 hr 24-48 hr
ACTIVE 01 % 40 %
MINOR 01 % 25 %
SEVERE 01 % 05 %
High latitudes 0-24 hr 24-48 hr
ACTIVE 15 % 40 %
MINOR 05 % 30 %
SEVERE 01 % 15 %
Tuesday, Dec. 27, 2011
What's up in space
Turn your cell phone into a field-tested satellite tracker. Works for Android and iPhone.
NIGHT AFTER CHRISTMAS SKY SHOW: When the sun goes down tonight, step outside and look west. Venus and the crescent Moon have gathered together for a lovely night-after-Christmas conjunction in the sunset sky. Science@NASA has the full story.
CMEs TARGET EARTH, MARS: The odds of a geomagnetic storm on Dec. 28th are improving with the launch of two CMEs toward Earth in less than 24 hours. NASA's STEREO-B spacecraft photographed this one on Dec. 26th ..."
http://spaceweather.com/
http://earthobservatory.nasa.gov/blogs/c…
http://sail.msfc.nasa.gov/current_solar_…