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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
SPACE WEATHER
Current conditions
Solar wind
speed: 357.1 km/sec
density: 3.1 protons/cm3
explanation | more data
Updated: Today at 2344 UT
X-ray Solar Flares
6-hr max: M2
1900 UT Feb06
24-hr: M2
1900 UT Feb06
explanation | more data
Updated: Today at: 2340 UT
Daily Sun: 06 Feb. 10
A big new sunspot (circled) has burst onto the scene this morning. It appears to pose a threat for M-class solar flares. Image credit: SOHO/MDI
Sunspot number: 22
What is the sunspot number?
Updated 05 Feb 2010

Spotless Days
Current Stretch: 0 days
2010 total: 2 days (6%)
2009 total: 260 days (71%)
Since 2004: 772 days
Typical Solar Min: 485 days
explanation | more info
Updated 05 Feb 2010


The Radio Sun
10.7 cm flux: 78 sfu
explanation | more data
Updated 05 Feb 2010

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 3
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 6.2 nT
Bz: 0.7 nT north
explanation | more data
Updated: Today at 2346 UT
Coronal Holes:
A solar wind stream flowing from the indicated coronal hole should reach Earth on or about Feb. 10th. Credit: SOHO Extreme UV Telescope
SPACE WEATHER
NOAA Forecasts
Updated at: 2010 Feb 06 2201 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
30 %
30 %
CLASS X
05 %
05 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2010 Feb 06 2201 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
30 %
30 %
MINOR
05 %
05 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
35 %
35 %
MINOR
10 %
10 %
SEVERE
05 %
05 %
What's up in Space
February 6, 2010

SATELLITE FLYBYS APP: Turn your iPhone or iPod into a field-tested satellite tracker! Spaceweather.com presents the Satellite Flybys app.

 

THE SUN IS A VARIABLE STAR: The Solar Dynamics Observatory (SDO), slated for liftoff on Feb. 9th, will make IMAX-quality movies of solar explosions, peer beneath the stellar surface to see the sun's inner dynamo, and--researchers hope--unravel the mysteries of solar variability. Get the full story from Science@NASA.

BIG NEW SUNSPOT: A big new sunspot is rapidly emerging in the sun's northern hemisphere. Rogerio Marcon sends this picture taken just hours ago from his backyard observatory in Campinas, Brasil:

The active region is crackling with solar flares. The strongest so far is an M2-class eruption at 1900 UT on Feb. 6th. (See the movie from NASA's STEREO-B spacecraft.) Each of the spot's dark cores is about twice as wide as Earth, which makes it an easy target for backyard solar telescopes. Stay tuned for solar activity!

more images: from Pete Lawrence of Selsey, West Sussex, UK; from Geir Øye of Ørsta, Norway; from Robert Arnold of Isle of Skye, Scotland; from Keith Davies of Swansea, South Wales, United Kingdom;

LAST NIGHT LAUNCH OF THE SHUTTLE PROGRAM: On Sunday morning, February 7th, at 4:39 am EST, space shuttle Endeavour is scheduled lift off from Kennedy Space Center on a 13-day mission to the ISS. There are only five missions left before NASA ends the shuttle program, and this will be the last one to launch at night. Endeavour's previous night launch looked like this:

The spectacle attracted sightseers from hundreds of miles around. If you plan to be in Florida this weekend, here are some places you can watch the launch in person. Otherwise, tune in to NASA TV for full coverage.

EXTRA: "And if you can arrange to be at azimuth 40 degrees (WNW) of the launch site, you'll have a crescent moon in the background," notes University of Kentucky astronomer Timothy Knauer. "Photo-Op alert!"

Endeavour Launch Blog
[recommended viewing sites] [NASA TV]


February Northern Lights Gallery
[previous Februarys: 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 February 6, 2010 there were 1094 potentially hazardous asteroids.
Jan. 2010 Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2010 AL2
Jan. 11
11.5 LD
20
23 m
24761 Ahau
Jan. 11
70.8 LD
16
1.4 km
2000 YH66
Jan. 12
69.5 LD
17
1.1 km
2010 AL30
Jan. 13
0.3 LD
14
18 m
2010 AG3
Jan. 19
8.9 LD
21
14 m
2010 AN61
Jan. 19
8.0 LD
20
17 m
2010 AF40
Jan. 21
2.3 LD
16
43 m
2010 BC
Jan. 24
7.6 LD
16
160 m
2010 BU2
Jan. 27
6.4 LD
17
52 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 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 and Heliospheric Observatory
  Realtime and archival images of the Sun from SOHO.
STEREO
  3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Daily Sunspot Summaries
  from the NOAA Space Environment Center
Current Solar Images
  from the National Solar Data Analysis Center
Science Central
   
  more links...
   
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