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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 291.0 km/sec
density: 3.3 protons/cm3
explanation | more data
Updated: Today at 2345 UT
X-ray Solar Flares
6-hr max: C2
1931 UT Mar08
24-hr: C7
0253 UT Mar08
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 08 Mar 12
Big sunspot 1429 poses a continued threat for X-class solar flares. Credit: SDO/HMI
Sunspot number: 102
What is the sunspot number?
Updated 07 Mar 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 07 Mar 2012


The Radio Sun
10.7 cm flux: 136 sfu
explanation | more data
Updated 07 Mar 2012

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 4 unsettled
24-hr max: Kp= 5
storm
explanation | more data
Interplanetary Mag. Field
Btotal: 21.9 nT
Bz: 6.9 nT north
explanation | more data
Updated: Today at 2346 UT
Coronal Holes: 08 Mar 12
A solar wind stream flowing from this coronal hole could reach Earth as early as March 9-10. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2012 Mar 08 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
80 %
80 %
CLASS X
40 %
40 %
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 Mar 08 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
35 %
15 %
MINOR
25 %
05 %
SEVERE
10 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
25 %
MINOR
20 %
15 %
SEVERE
20 %
10 %
 
Thursday, Mar. 8, 2012
What's up in space
 

They came from outer space--and you can have one! Genuine meteorites are now on sale in the Space Weather Store.

 
Own your own meteorite

CME IMPACT: A coronal mass ejection (CME) hit Earth's magnetic field on March 8th around 1100 UT. The impact was weaker than expected, sparking only a mild (Kp=5) geomagnetic storm. However, the storm could intensify in the hours ahead depending on electromagnetic conditions in the wake of the CME. High-latitude sky watchers should be alert for auroras. Aurora alerts: text, phone.

Giovanni Cappelli sends this picture from the tundra east of Murmansk, Russia:

"We were in the tundra waiting for the CME," says Cappelli. "The auroras were better than expected this time. This photo resembled green fire shooting up from the snow "

more images: from Pavel Kantsurov of Norilsk, Russia; from Aleksander Chernucho of Kola peninsula, Russia, Mt. Khibiny; from Chad Blakley of Aurora Sky Station, Abisko National Park, Sweden; from Timo Newton-Syms of Ruka, Finland; from Timo Veijalainen of Sodankylä, Finland;

HUGE SUNSPOT: Active sunspot AR1429 continues to grow. It is now more than seven times wider than Earth, which makes it an easy target for backyard solar telescopes. In fact, yesterday, David Tremblay of Alto, New Mexico, saw it using no telescope at all. All he needed was a dust storm:

"The dust blowing from Tularosa Basin was so dense, we could observe the sun with the naked eye--and there was sunspot AR1429. Wow!" says Tremblay.

The behemoth spot has unleashed four strong flares since it emerged on March 2nd, including the X5-class eruption of March 7th. More could be in the offing. The active region has a "beta-gamma-delta" class magnetic field that harbors energy for additional X-class eruptions. Solar flare alerts: text, phone.

more images: from Jett Aguilar of Quezon City, Philippines; from James Kevin Ty of Manila, Philippines; from Harald Paleske of Langendorf b. Weißenfels, Germany; from Rogerio Marcon of Campinas SP Brasil; from Monika Landy-Gyebnar of Veszprem, Hungary; from Ron Wayman of Tampa Florida; from John Stetson of Falmouth, Maine; from Robert Lowton of Whaley Bridge, Peak District, United Kingdom; from José Geraldo Mattos of Florianópolis, Jurerê Internacional, Santa Catarina, Brasil; from Matthew Wastell of Brisbane, Australia; from Kiss Csongor of Derecske, Hungary


February 2012 Aurora Gallery
[previous Februaries: 2011, 2010, 2009, 2008, 2007, 2006, 2004, 2003, 2002]

  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 March 8, 2012 there were 1287 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2012 EA
Mar 3
2.6 LD
--
18 m
2012 DU60
Mar 3
9.1 LD
--
37 m
2012 EM1
Mar 6
7.6 LD
--
21 m
2008 EJ85
Mar 6
9.1 LD
--
44 m
2012 DH54
Mar 10
3.3 LD
--
13 m
2012 DW60
Mar 12
2.5 LD
--
23 m
1999 RD32
Mar 14
57.9 LD
--
2.4 km
2011 YU62
Mar 16
73.4 LD
--
1.3 km
1996 SK
Apr 18
67.2 LD
--
1.6 km
2007 HV4
Apr 19
4.8 LD
--
8 m
2011 WV134
Apr 28
38.6 LD
--
1.8 km
1992 JD
May 2
9.5 LD
--
43 m
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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