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Solar wind
speed: 368.8 km/sec
density: 4.6 protons/cm3
explanation | more data
Updated: Today at 2347 UT
X-ray Solar Flares
6-hr max: B2
1839 UT Jun10
24-hr: C1
1424 UT Jun10
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 10 Jun 13
Neither of these sunspots poses a threat for strong solar flares. Credit: SDO/HMI
Sunspot number: 41
What is the sunspot number?
Updated 10 Jun 2013

Spotless Days
Current Stretch: 0 days
2013 total: 0 days (0%)
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

Update
10 Jun 2013

The Radio Sun
10.7 cm flux: 96 sfu
explanation | more data
Updated 10 Jun 2013

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 4
unsettled
explanation | more data
Interplanetary Mag. Field
Btotal: 6.5 nT
Bz: 2.4 nT north
explanation | more data
Updated: Today at 2347 UT
Coronal Holes: 10 Jun 13
There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.

NEW: Spaceweather.com is now posting daily satellite images of noctilucent clouds (NLCs), which hover over Earth's poles at the edge of space. The data come from NASA's AIM spacecraft. The north polar "daisy" pictured below is a composite of near-realtime images from AIM assembled by researchers at the University of Colorado's Laboratory for Atmospheric and Space Physics (LASP).
Noctilucent Clouds
Switch view: Europe, USA, Asia, Polar
Updated at: 06-10-2013 10:55:03
SPACE WEATHER
NOAA Forecasts
Updated at: 2013 Jun 10 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
10 %
10 %
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: 2013 Jun 10 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
10 %
10 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
20 %
20 %
SEVERE
15 %
15 %
 
Monday, Jun. 10, 2013
What's up in space
 

When is the best time to see auroras? Where is the best place to go? And how do you photograph them? These questions and more are answered in a new book, Northern Lights - a Guide, by Pal Brekke & Fredrik Broms.

 
Northern Lights - a Guide

METEOR ALERT: Sky watchers in North America might see an outburst of meteors during the early hours of June 11th when Earth passes through a stream of cometary debris last seen in 1930. Forecasters Peter Jenniskens (SETI Institute) and Esko Lyytinen (Helsinki, Finland) predict the return of the gamma Delphinid meteor shower this Tuesday morning around 08:30 UT (04:30 am EDT). The shower is expected to last no more than about 30 minutes with an unknown number of bright, fast meteors. Bill Cooke of NASA's Meteoroid Environment Office will chat about the shower starting tonight at 11 PM EDT. [Meteor radar] SWx alerts: text, voice.

NOCTILUCENT CLOUDS: Researchers working with data from NASA's AIM spacecraft have announced that noctilucent clouds (NLCs) are behaving strangely. Boosted by changing "teleconnections" in Earth's atmosphere, the summertime clouds appeared earlier this year than ever before, setting the stage for an unusually good season of NLCs. "Unusually good" nicely describes the apparition Sunday morning over Troon, Ayrshire, Scotland:

"It was an amazing display," says photographer Mark Ferrier. "The clouds appeared after sunset on June 8th and lasted straight through to sunrise on June 9th."

High latitude sky watchers should be alert for NLCs in the evenings ahead. In recent years they have been sighted as far south as Utah, Colorado, and Nebraska. Observing tips: Look west 30 to 60 minutes after sunset when the sun has dipped 6o to 16o below the horizon. If you see luminous blue-white tendrils spreading across the sky, you've probably spotted a noctilucent cloud.

Realtime Noctilucent Cloud Photo Gallery
[previous years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011]

WEIRD SUNSET: Astronomers in the Netherlands have discovered a world where the sun is square. It is Earth. On June 6th Jan Koeman was watching the sunset from Lauwersoog, and this is what he saw:

"The sunset was a very weird one," says Koeman. "Inversions in the atmosphere gave it some very odd shapes."

UK atmospheric optics expert Les Cowley was in the Netherlands last week. "Conditions were favorable for this kind of mirage," he says. "To see weird miraged suns look out at sunrise in very cold weather and at sunset when it is hot. We had beautiful hot sunny weather all last week in the Netherlands. The sun heated the land and topmost layers of the sea to generate by early evening strong temperature inversions, layers of unusually warm air beneath cooler air. The setting sun rays slanted through the layers where they were bent to form multiple image slices that combine into outlandish shapes and even stacked pancakes. Sometimes tiny green flashes can be photographed on the topmost pancake."

"I was looking for the green flash," adds Koeman, "but this time no success. More sunsets will follow."

Realtime Space Weather Photo Gallery


Realtime Aurora Photo Gallery


Realtime Comet Photo Gallery

  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 10, 2013 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
2000 FM10
Jun 5
50.3 LD
1.3 km
2002 KL3
Jun 6
66.4 LD
1.1 km
2013 LR6
Jun 8
0.3 LD
12 m
2013 LD2
Jun 10
6 LD
49 m
1999 WC2
Jun 12
39.2 LD
1.9 km
2006 RO36
Jun 18
70.9 LD
1.2 km
2001 PJ9
Jul 17
29.2 LD
1.1 km
2006 BL8
Jul 26
9.3 LD
48 m
2003 DZ15
Jul 29
7.6 LD
153 m
2005 WK4
Aug 9
8.1 LD
420 m
1999 CF9
Aug 23
24.7 LD
1.1 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
Space Weather Alerts
   
  more links...
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