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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 449.1 km/sec
density: 0.1 protons/cm3
explanation | more data
Updated: Today at 2337 UT
X-ray Solar Flares
6-hr max: C3
1802 UT Mar06
24-hr: C8
1444 UT Mar06
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 06 Mar 11
Sunspot 1164 has a delta-class magnetic field that harbors energy for X-class flares. Credit: SDO/HMI
Sunspot number: 114
What is the sunspot number?
Updated 05 Mar 2011

Spotless Days
Current Stretch: 0 days
2011 total: 1 day (2%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)
Since 2004: 820 days
Typical Solar Min: 486 days

Updated 05 Mar 2011


The Radio Sun
10.7 cm flux: 135 sfu
explanation | more data
Updated 05 Mar 2011

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: 5.1 nT
Bz: 2.7 nT north
explanation | more data
Updated: Today at 2338 UT
Coronal Holes: 06 Mar 11
There are no large coronal holes on the Earth-side of the sun. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2011 Mar 06 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
45 %
45 %
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: 2011 Mar 06 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
05 %
MINOR
05 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
25 %
05 %
MINOR
10 %
01 %
SEVERE
01 %
01 %
 
Sunday, Mar. 6, 2011
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

AURORA WATCH: A slow-moving coronal mass ejection (CME) launched from the sun on March 3rd should reach Earth later today, possibly sparking polar geomagnetic storms. High-latitude sky watchers should be alert for auroras.

SUNSET SKY SHOW: When the sun sets tonight, go outside and look west. Jupiter and the 5% crescent Moon will be side-by-side, shining together through the twilight. It's an exquisite conjunction. [sky map]

On March 5th, Peter Rosén caught the Moon, pre-conjunction, smiling over the tree tops of Stockholm, Sweden:

"The Moon was only 20h40m past 'new' when I took the picture," says Rosén. "It should look even better on Sunday night when it glides past Jupiter."

more images: from Marcin Grzybowski of Forslov, Sweden; from Bjørn H. Granslo of Røverkollen, Oslo, Norway; from Jan Andersson of Borås, Sweden; from Jin Lu of Tempe, AZ, USA

PLASMA RAIN: It's raining on the sun today. Micheal Buxton recorded the shower from his backyard observatory in Ocean Beach, California. Open your umbrella and click on the image, below:

"I captured the event at 1 minute intervals from 1901-1935 UT on 5 Mar 2011," says Buxton. "What a great day for observing the sun."

more images: from Alan Friedman at the Winter Star Party in West Summerland Key, Florida; from David Mason of Maidenhead, Berkshire, UK; from Dave Gradwell of Birr Ireland; from Szabolcs Szabó of Szolnok, Hungary; from Theo Ramakers of Social Circle,GA; from Teodorescu Maximilian of Dumitrana, Romania; from Enrico Colzani of Sormano Astronomical Observatory (Italy); from Stefano Sello of Pisa, Italy; from Roucheux Philippe of Joigny Bourgogne France; from David Cortner of Rutherford College, NC


March 2011 Aurora Photo Gallery
[previous Marches: 2010, 2009, 2008, 2007, 2006, 2005, 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 6, 2011 there were 1204 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2011 DT9
Feb 27
9 LD
--
39 m
2011 DE5
Mar 1
4.9 LD
--
22 m
2011 DW4
Mar 3
6.9 LD
--
15 m
2011 EN11
Mar 3
0.6 LD
--
11 m
2011 EC
Mar 6
9.2 LD
--
34 m
2011 EO11
Mar 6
1.8 LD
--
15 m
2011 EY11
Mar 7
0.3 LD
--
9 m
2011 EC12
Mar 8
3.4 LD
--
28 m
2000 PN9
Mar 10
45.5 LD
--
2.6 km
2002 DB4
Apr 15
62.5 LD
--
2.2 km
2008 UC202
Apr 27
8.9 LD
--
10 m
2009 UK20
May 2
8.6 LD
--
23 m
2008 FU6
May 5
75.5 LD
--
1.2 km
2003 YT1
May 5
65.3 LD
--
2.5 km
2002 JC
Jun 1
57.5 LD
--
1.6 km
2009 BD
Jun 2
0.9 LD
--
9 m
2002 JB9
Jun 11
71.5 LD
--
3.2 km
2001 VH75
Jun 12
42.2 LD
--
1.1 km
2004 LO2
Jun 15
9.9 LD
--
48 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
Conquest Graphics
  for out-of-this-world printing and graphics
Science Central
   
  more links...
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