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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 377.6 km/sec
density: 0.3 protons/cm3
explanation | more data
Updated: Today at 2346 UT
X-ray Solar Flares
6-hr max: B3
1725 UT Feb14
24-hr: C1
0430 UT Feb14
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 14 Feb 13
None of these sunspots is actively flaring. Credit: SDO/HMI
Sunspot number: 26
What is the sunspot number?
Updated 14 Feb 2013

Spotless Days
Current Stretch: 0 days
2013 total: 0 days (0%)
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

Update
14 Feb 2013

The Radio Sun
10.7 cm flux: 100 sfu
explanation | more data
Updated 14 Feb 2013

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 3
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 3.4 nT
Bz: 0.1 nT north
explanation | more data
Updated: Today at 2346 UT
Coronal Holes: 14 Feb 13
There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2013 Feb 14 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
01 %
01 %
CLASS X
01 %
01 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2013 Feb 14 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
10 %
05 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
15 %
15 %
SEVERE
10 %
05 %
 
Thursday, Feb. 14, 2013
What's up in space
 

Metallic photos of the sun by renowned photographer Greg Piepol bring together the best of art and science. Buy one or a whole set. They make a stellar gift.

 
Metallic pictures of the Sun

THE UN BRACES FOR STORMY SPACE WEATHER: Forecasters say solar maximum is due in 2013. To prepare, the United Nations is taking steps to organize an international response to stormy space weather. Get the full story from Science@NASA.

VALENTINE'S DAY MAGNETIC STORM: Valentine's Day in Scandinavia began with a magnetic storm. Rob Stammes of the Polar Light Center in Lofoten, Norway, reports: "Our instruments recorded 2o swings in the local magnetic field, which induced strong electrical currents in the ground outside our lab." The needles on his chart recorder were swinging wildly:

"Overhead we saw some fantastic auroras," he adds.

The storm was caused by a region of south-pointing magnetism in the solar wind that wafted past Earth during the early hours of Feb. 14th. The solar wind's south-pointing magnetic field partially canceled Earth's north-pointing magnetic field, opening a crack in our planet's magnetosphere. Solar wind poured in to fuel the storm.

Browse the realtime gallery for images of some sweet auroras on Valentine's day. Aurora alerts: text, voice.

Realtime Aurora Photo Gallery

ASTEROID FLYBY: At 9:30 am on Friday, Feb. 15th, asteroid 2012 DA14 will fly past Earth only 17,200 miles above our planet's surface. This will put it well inside the orbit of geosynchronous satellites, closer than any asteroid of the same size has come since regular sky surveys began in the 1990s. Researchers speculate that Earth's gravity might even cause seismic activity on the 50m-wide space rock. Click to view a computer simulation of the flyby, courtesy of NASA:

During the hours around closest approach, the asteroid will brighten until it resembles a star of 8th magnitude. Theoretically, that’s an easy target for backyard telescopes. The problem is speed. The asteroid will be racing across the sky, moving almost a full degree (or twice the width of a full Moon) every minute. That’s going to be hard to track. Only the most experienced amateur astronomers are likely to succeed. For the rest of us, NASA will broadcast the asteroid's flyby on NASA TV.

Asteroid 2012 DA14 is about the same size as previous asteroids responsible for the Meteor Crater in Arizona and the Tunguska Event in Siberia. Unlike those objects, however, 2012 DA14 will not hit Earth. Even if seismic activity breaks the asteroid apart, there is no danger; the fragments would continue along the same non-intersecting path as the original asteroid.

Realtime Space Weather Photo Gallery


Realtime Comet Photo Gallery


Realtime Noctilucent Cloud Photo Gallery
[previous years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011]

  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 February 14, 2013 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
1999 HA2
Feb 5
58 LD
1.3 km
2013 BA74
Feb 6
4.5 LD
35 m
2013 BS45
Feb 12
4.9 LD
29 m
3752 Camillo
Feb 12
57.5 LD
3.4 km
2013 BV15
Feb 13
3.7 LD
60 m
1999 YK5
Feb 15
49.1 LD
2.1 km
2012 DA14
Feb 15
0.09 LD
65 m
2013 CE82
Feb 17
4.6 LD
40 m
2013 CZ87
Feb 19
7 LD
28 m
2009 AV
Feb 25
59.7 LD
1.0 km
2007 EO88
Mar 18
4.4 LD
23 m
1993 UC
Mar 20
49 LD
3.8 km
1997 AP10
Mar 28
45.9 LD
1.8 km
2010 GM23
Apr 13
3.9 LD
50 m
2005 NZ6
Apr 29
24.9 LD
1.3 km
2001 DQ8
Apr 30
74.3 LD
1.1 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
Space Weather Alerts
   
  more links...
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