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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 601.7 km/sec
density: 2.7 protons/cm3
explanation | more data
Updated: Today at 2345 UT
X-ray Solar Flares
6-hr max: C1
1701 UT Dec14
24-hr: C2
1554 UT Dec14
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 14 Dec 10
All of the spots on the Earth-side of the sun are quiet. Credit: SDO/HMI 2-day movie: 9 MB mpg
Sunspot number: 46
What is the sunspot number?
Updated 13 Dec 2010

Spotless Days
Current Stretch: 0 days
2010 total: 45 days (13%)
2009 total: 260 days (71%)
Since 2004: 813 days
Typical Solar Min: 486 days

Updated 13 Dec 2010


The Radio Sun
10.7 cm flux: 88 sfu
explanation | more data
Updated 13 Dec 2010

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: 4.5 nT
Bz: 0.9 nT north
explanation | more data
Updated: Today at 2346 UT
Coronal Holes: 14 Dec 10
Earth is inside a solar wind stream flowing from the indicated coronal hole. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2010 Dec 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: 2010 Dec 14 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
10 %
15 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
20 %
MINOR
01 %
05 %
SEVERE
01 %
01 %
 
Tuesday, Dec. 14, 2010
What's up in space
 

iPHONE VS ANDROID! Actually, it doesn't matter which phone you carry. Our cool, new app turns both smartphones into field-tested satellite trackers. Learn more.

 

GLOBAL ERUPTION ROCKS THE SUN: A global eruption on the sun has shattered old ideas about solar activity. Researchers presented their surprising findings at a press conference yesterday at the American Geophysical Union meeting in San Francisco. Get the full story from Science@NASA.

GEMINID METEOR SHOWER: The Geminid meteor shower is peaking now. According to the International Meteor Organization, rates under ideally dark skies are topping 80 Geminids per hour. If it's dark where you live, go outside and look up. If not, try listening to the Geminids on Space Weather Radio.

Last night in the Hekla area of Iceland, the skies were anything but dark, but the Geminids made an appearance anyway:

"I went out for Geminids and got Northern Lights as a bonus," says photographer Borkur Hrolfsson.

more images: from David Harvey of Kitt Peak National Observatory, Arizona; from Guillaume Cannat of Mont Aigoual, France; from Greg Stablein of Memphis, TN; from Brian Klimowski of Flagstaff, AZ; from James Champagne of Madera Canyon, Arizona; from David Blanchard of Flagstaff, Arizona; from Sylvain Weiller of Saint Rémy lès Chevreuse, France; from James Beauchamp of Oklahoma City, OK; from Marsha Adams of Sedona, Arizona; from David Rosenkrantz of Usery Pass, Arizona; from Steve & Donna O'Meara of Mauna Loa, Hawaii; from Antonio Finazzi of Chiuduno (BG) Italy;

MAGNETIC ERUPTION : Earlier today around 1530 UT, a filament of magnetism lifted up from the surface of the sun and--snap!--erupted. NASA's Solar Dynamics Observatory recorded the action:


Click to play a 3MB animation

The blast produced an hours-long C2-class solar flare and hurled a magnificent CME into space: SOHO movie. The expanding cloud is not heading directly toward Earth, but it might deliver a glancing blow to our planet's magnetic field two or three days hence. Stay tuned for a more refined analysis later today.


November 2010 Aurora Gallery
[previous Novembers: 2009, 2008, 2007, 2006, 2004, 2003, 2002, 2001, 2000]

  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 December 14, 2010 there were 1167 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2010 TQ19
Oct 8
9.6 LD
18
37 m
2010 TS19
Oct 10
3.7 LD
18
31 m
2010 TD54
Oct 12
0.1 LD
14
7 m
2010 TB54
Oct 13
6.1 LD
20
19 m
1999 VO6
Oct 14
34.3 LD
16
1.8 km
2010 TK
Oct 16
4.5 LD
18
37 m
1998 TU3
Oct 17
69.1 LD
13
5.2 km
2010 TG19
Oct 22
1.1 LD
15
70 m
1998 MQ
Oct 23
77.7 LD
15
1.9 km
2007 RU17
Oct 29
39.2 LD
15
1.1 km
2003 UV11
Oct 30
5 LD
12
595 m
3838 Epona
Nov 7
76.8 LD
14
3.4 km
2005 QY151
Nov 16
77.7 LD
17
1.3 km
2008 KT
Nov 23
5.6 LD
21
10 m
2002 EZ16
Nov 30
73.9 LD
16
1.0 km
2000 JH5
Dec 7
47 LD
-
1.5 km
2010 JL33
Dec 9
16.6 LD
13
1.3 km
2008 EA32
Jan 7
76.5 LD
-
2.1 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
Science Central
   
  more links...
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