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Solar wind
speed: 365.9 km/sec
density: 6.7 protons/cm3
explanation | more data
Updated: Today at 2347 UT
X-ray Solar Flares
6-hr max: M1
1931 UT Jun06
24-hr: M1
1931 UT Jun06
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 06 Jun 14
Solar activity remains low. However, new sunspot AR2080 has developed a 'beta-gamma-magnetic field that harbors energy for M-class solar flares. Credit: SDO/HMI
Sunspot number: 102
What is the sunspot number?
Updated 06 Jun2014

Spotless Days
Current Stretch: 0 days
2014 total: 0 days (0%)
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%)

06 Jun 2014

The Radio Sun
10.7 cm flux: 111 sfu
explanation | more data
Updated 06 Jun 2014

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 2
explanation | more data
Interplanetary Mag. Field
Btotal: 2.6 nT
Bz: 1.9 nT north
explanation | more data
Updated: Today at 2347 UT
Coronal Holes: 06 Jun 14
There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA. posts 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: 06-06-2014 10:55:05
NOAA Forecasts
Updated at: 2014 Jun 06 2200 UTC
0-24 hr
24-48 hr
30 %
35 %
10 %
15 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2014 Jun 06 2200 UTC
0-24 hr
24-48 hr
20 %
15 %
05 %
01 %
01 %
01 %
High latitudes
0-24 hr
24-48 hr
15 %
20 %
25 %
30 %
30 %
20 %
Friday, Jun. 6, 2014
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

FATHER'S DAY AT THE EDGE OF SPACE: Would you like to send your dad to the Edge of Space? He can't go, but his picture can. Using a suborbital helium balloon, the students of Earth to Sky Calculus will fly the image of your choice to 120,000 ft and photograph it against the curved limb of the Earth. The returned photo (example) makes a great Father's Day gift. The flight fee is $49.95, and profits support student research. Contact Dr. Tony Phillips for details.

GROWING SUNSPOTS: Straddling the sun's equator, a pair of sunspots is rapidly emerging today. Two days ago, they were nearly invisible; now their dark cores are as large as Earth. Pay attention to the circled regions in this 48-hour movie from NASA's Solar Dynamics Observatory:

The southern sunspot, AR2080, has developed a 'beta-gamma' magnetic field that harbors energy for significant eruptions. It is now crackling with C-class flares; these flares are relatively weak but they could herald something stronger. NOAA forecasters have boosted the odds of M-flares to 10%, a figure that is likely to increase in the days ahead. Solar flare alerts: text, voice

Realtime Space Weather Photo Gallery

NOCTILUCENT CLOUDS INTENSIFY: NASA's AIM spacecraft saw the first wispy noctilucent clouds (NLCs) of the 2014 summer season on May 24th. Since then NLCs have begun to intensify around the Arctic Circle and descend to lower latitudes. This morning, June 6th, Noel Blaney spotted a bank of the electric-blue clouds over Bangor, Northern Ireland:

"I witnessed this nice early-season noctilucent cloud display over Belfast Lough at 2am," says Blaney. "These are my first proper images of NLCs!"

A few hours later, Lance Taylor saw more NLCs over Edmonton, Alberta. "This was my first sighting of the season - and I have been watching for them for the past two weeks now," he says.

Seeded by meteor smoke and boosted by the climate-change gas methane, noctilucent clouds have been spreading beyond the Arctic. In recent years, they have been sighted as far south as Colorado and Utah. 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 may have spotted a noctilucent cloud.

Realtime Space Weather Photo Gallery

SPACE STATION FLYBYS: North Americans, if you're outside after dark and you notice a bright light slowly gliding overhead, you've likely seen the International Space Station. This week and next the behemoth spacecraft is making a series of passes over the USA and Canada--in some places several times a day. G Taylor spotted the ISS rising above Half Dome in California's Yosemite National Park on June 1st:

"This was a lucky shot," says Taylor. " I was photographing Half Dome at the time I knew the Space Station would be making an appearance... but I didn't even know if I had the camera in the right direction. The ISS appeared just after 10pm. A sliver of a moon lit up the valley."

Taylor was under dark skies when he saw the ISS, but you don't have to be. The space station is so bright, it is visible even from light-polluted cities. Check's Simple Satellite Tracker to find out when it will fly over your hometown. ISS flyby alerts: text, voice

Realtime Space Weather Photo Gallery

Realtime Comet Photo Gallery

Realtime Meteor Photo Gallery

Realtime Aurora Photo Gallery

  All Sky Fireball Network

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics. Daily results are presented here on

On Jun. 6, 2014, the network reported 5 fireballs.
( 5 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

  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 6, 2014 there were 1484 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Miss Distance
2014 KH39
Jun 3
1.1 LD
25 m
2014 KQ84
Jun 5
8.6 LD
20 m
2014 KA91
Jun 6
9.2 LD
35 m
2014 HQ124
Jun 8
3.3 LD
160 m
2011 PU1
Jul 18
7.6 LD
43 m
2002 JN97
Aug 2
61.4 LD
2.0 km
2001 RZ11
Aug 17
34.2 LD
2.2 km
2013 WT67
Aug 17
16.1 LD
1.2 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.
  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
  the underlying science of space weather
Space Weather Alerts
  more links...
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