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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 507.4 km/sec
density: 1.0 protons/cm3
explanation | more data
Updated: Today at 2347 UT
X-ray Solar Flares
6-hr max: C3
1847 UT Jul15
24-hr: C3
1847 UT Jul15
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 15 Jul 12
Sunspot 1520 poses a continued threat for X-class solar flares. As the sunspot turns away from Earth, however, the chances of a geoeffective eruption are decreasing. Credit: SDO/HMI
Sunspot number: 120
What is the sunspot number?
Updated 15 Jul 2012

Spotless Days
Current Stretch: 0 days
2012 total: 0 days (0%)
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 15 Jul 2012


The Radio Sun
10.7 cm flux: 148 sfu
explanation | more data
Updated 15 Jul 2012

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 6 storm
24-hr max: Kp= 6
storm
explanation | more data
Interplanetary Mag. Field
Btotal: 18.4 nT
Bz: 14.2 nT south
explanation | more data
Updated: Today at 2347 UT
Coronal Holes: 14 Jul 12
There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2012 Jul 15 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
40 %
40 %
CLASS X
15 %
15 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2012 Jul 15 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
30 %
05 %
MINOR
10 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
30 %
10 %
SEVERE
40 %
05 %
 
Sunday, Jul. 15, 2012
What's up in space
 

Listen to radar echoes from satellites and meteors, live on listener-supported Space Weather Radio.

 
Spaceweather Radio is on the air

AURORA ALERT: A geomagnetic storm is in progress as Earth's magnetic field continues to reverberate from a CME strike on July 14th. Sky watchers in Scandinavia, Canada, Alaska and northern-tier US states from Maine to Washington should be alert for auroras after nightfall. Observing tip: The hours around local midnight are usually best for aurora-spotting. Aurora alerts: text, voice.

When the CME first arrived on July 14th, its effect appeared weak. However, conditions in the wake of the CME have since become stormy. On July 14-15 Northern Lights appeared in the United States as far south as California, Colorado, Missouri, Utah, Wisconsin, Iowa, Minnesota, Washington, Illinois, Kansas, Nebraska, Michigan and Arkansas. Brad Goldpaint sends this picture of the auroras reflecting from Sparks Lake in central Oregon:

Meanwhile in the southern hemisphere, the aurora australis has been sighted in New Zealand, Australia, and directly above the South Pole itself. Visit our aurora gallery for a complete set of images:

Realtime Aurora Photo Gallery


Realtime Space Weather Photo Gallery

  Near Earth Asteroids
Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
On July 15, 2012 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2003 KU2
Jul 15
40.2 LD
--
1.3 km
2004 EW9
Jul 16
46.8 LD
--
2.1 km
2002 AM31
Jul 22
13.7 LD
--
1.0 km
37655 Illapa
Aug 12
37 LD
--
1.2 km
2000 ET70
Aug 21
58.5 LD
--
1.1 km
1998 TU3
Aug 25
49.2 LD
--
4.9 km
2009 AV
Aug 26
62.8 LD
--
1.1 km
1998 UO1
Oct 4
60.1 LD
--
2.1 km
2005 GQ21
Oct 12
77 LD
--
1.0 km
Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.
  Essential web links
NOAA Space Weather Prediction Center
  The official U.S. government space weather bureau
Atmospheric Optics
  The first place to look for information about sundogs, pillars, rainbows and related phenomena.
Solar Dynamics Observatory
  Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever.
STEREO
  3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Solar and Heliospheric Observatory
  Realtime and archival images of the Sun from SOHO.
Daily Sunspot Summaries
  from the NOAA Space Environment Center
Heliophysics
  the underlying science of space weather
Trade Show Displays
   
  more links...
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