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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 440.2 km/sec
density: 4.8 protons/cm3
explanation | more data
Updated: Today at 2344 UT
X-ray Solar Flares
6-hr max: B7
2219 UT Jun13
24-hr: C1
0055 UT Jun13
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 12 Jun 11
The Earthside of the sun is almost blank. The chance of strong flares is low. Credit: SDO/HMI
Sunspot number: 16
What is the sunspot number?
Updated 11 Jun 2011

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

Updated 11 Jun 2011


The Radio Sun
10.7 cm flux: 85 sfu
explanation | more data
Updated 11 Jun 2011

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 3 quiet
24-hr max: Kp= 3
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 8.4 nT
Bz: 7.4 nT north
explanation | more data
Updated: Today at 2345 UT
Coronal Holes: 11 Jun 11
A minor solar wind stream flowing from the indicated coronal hole should reach Earth on or about June 14th. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2011 Jun 13 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: 2011 Jun 13 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
20 %
10 %
MINOR
10 %
01 %
SEVERE
01 %
01 %
 
Monday, Jun. 13, 2011
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

LUNAR ECLIPSE: If you live in North America, you're out of luck. Sky watchers on every other continent, however, will experience a total lunar eclipse on June 15th. The Moon will spend 100 minutes fully engulfed in Earth's shadow, making this the longest lunar eclipse in nearly 11 years. Maximum eclipse occurs on Wednesday night at 20:12 UT. [details] [animation]

SPACE STATION MARATHON: The International Space Station is putting on a rare "marathon" show for sky watchers in the northern hemisphere. In some places, the bright spacecraft is appearing as many as four times a night. On June 12th, Mark Humpage of South Kilworth, Leics, UK, captured two flybys in a single exposure:

"What an amazing night of multiple flybys over the UK," says Humpage. "I set up a tent and camera beside the water and watched all night as the space station flew overhead 4 times. This shot shows a double flyby at 0057 UT and 0232 UT. The ISS was nearly as bright as the moon, and a low lying mist added to the eerie breathtaking scene. Stunning."

Multiple flyby predictions for cities around the world are available from Spaceweather's Simple Satelite Tracker or on your cell phone. Enjoy the show!

more images: from Orlando Z. Gonzalez of Bayamón, Puerto Rico

PIPPIN'S RAINBOW: On June 8th in North Yorkshire, England, photographer Philip Jennings witnessed "possibly the brightest rainbow I have ever seen," he says. "For a while it was even double." The 'bow was so intense, even Jennings' dog Pippin paid attention:

What was Pippin thinking? No one can say for sure, but it might have gone something like this: "Do I detect a wet dog smell? This phenomenon must be related to rain."

Issac Newton confirmed Pippin's hypothesis back in the 17th century when he passed light through a prism, demonstrating that white light could be split into multiple colors. This set the stage for our modern understanding of rainbows: They are formed by the prism-action of raindrops, which reflect and refract sunlight shining into storm clouds. Whenever you see one, it does indeed herald the scent of wet dogs. Good boy, Pippin!


June 2011 Aurora Gallery
[Aurora alerts: text, voice] [previous Junes: 2010, 2008, 2001]


Midnight Solar Eclipse Gallery
[NASA: A Rare Eclipse of the Midnight Sun]

  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 June 13, 2011 there were 1224 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2011 KE15
Jun 3
3.7 LD
--
16 m
2011 KV15
Jun 5
8.3 LD
--
25 m
2002 JB9
Jun 11
71.5 LD
--
3.1 km
2001 VH75
Jun 12
42.2 LD
--
1.1 km
2011 LT17
Jun 15
4.6 LD
--
215 m
2004 LO2
Jun 15
9.9 LD
--
48 m
2011 GA55
Jul 6
64.1 LD
--
1.0 km
2011 EZ78
Jul 10
37.3 LD
--
1.6 km
2003 YS117
Jul 14
73.9 LD
--
1.0 km
2007 DD
Jul 23
9.3 LD
--
31 m
2009 AV
Aug 22
49.7 LD
--
1.1 km
2003 QC10
Sep 18
50 LD
--
1.2 km
2004 SV55
Sep 19
67.5 LD
--
1.2 km
2007 TD
Sep 23
3.8 LD
--
58 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
Science Central
 
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