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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 320.2 km/sec
density: 1.1 protons/cm3
explanation | more data
Updated: Today at 2346 UT
X-ray Solar Flares
6-hr max: C2
1816 UT Jun15
24-hr: C3
1324 UT Jun15
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 15 Jun 12
Sunspot 1504 has developed a delta-class magnetic field that poses a threat for Earth-directed X-flares. Credit: SDO/HMI
Sunspot number: 114
What is the sunspot number?
Updated 15 Jun 2012

Spotless Days
Current Stretch: 0 days
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

Updated 15 Jun 2012


The Radio Sun
10.7 cm flux: 149 sfu
explanation | more data
Updated 15 Jun 2012

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 1
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 4.0 nT
Bz: 1.5 nT north
explanation | more data
Updated: Today at 2346 UT
Coronal Holes: 13 Jun 12
There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2012 Jun 15 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
65 %
65 %
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: 2012 Jun 15 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
25 %
30 %
MINOR
10 %
20 %
SEVERE
05 %
05 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
10 %
MINOR
25 %
20 %
SEVERE
40 %
50 %
 
Friday, Jun. 15, 2012
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

CHANCE OF FLARES: Big sunspot AR1504 has developed a 'beta-gamma-delta' magnetic field that harbors energy for strong solar flares. NOAA forecasters estimate a 65% chance of M-flares and a 5% chance of X-flares during the next 24 hours. X-flare alerts: text, voice.

INCOMING CMES: On June 14th, for the second day in a row, sunspot AR1504 erupted and hurled a CME toward Earth. The fast-moving (1360 km/s) cloud is expected to sweep up a previous CME and deliver a combined blow to Earth's magnetic field on June 16th around 10:16 UT. This animation shows the likely progression of the approaching storm:

According to the forecast track prepared by analysts at the Goddard Space Weather Lab, the CMEs will also hit Venus on June 15th and Mars on June 19th. Because Venus and Mars do not have global magnetic fields to protect them, both of those planets will probably lose tiny amounts of atmosphere when the CMEs strike.

Here on Earth, the impact is likely to trigger a geomagnetic storm around the poles. High-latitude sky watchers should be alert for auroras on June 16th. Magnetic storm alerts: text, voice.

Movie extras: NASA's Solar Dynamics Observatory captured the UV glow from today's M2-class solar flare. The STEREO-Ahead spacecraft photographed the massive CME.

ELECTRIC-BLUE NOCTILUCENT CLOUDS: Data from NASA's AIM spacecraft show that noctilucent clouds (NLCs) are like a great "geophysical light bulb." They turn on every year in late spring, reaching almost full intensity over a period of no more than 5 to 10 days. News flash: The bulb is glowing. Flying photographer Brian Whittaker photographed these NLCs over Canada on June 13th:

"I was very happy to see my first noctilucent clouds of 2012," says Whittaker. "They were visible to the north for about 3 hours as we flew between Ottawa and Newfoundland at 35,000 feet."

These electric-blue clouds are hanging 85 km above Earth's surface, at the edge of space itself. Their origin is still largely a mystery; various theories associate them with space dust, rocket exhaust, global warming--or some mixture of the three. One thing is sure. They're baaack ... for the summer of 2012.

Observing tips: NLCs favor high latitudes, although they have been sighted as far south as Colorado and Virginia. 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
[Submit your photos] [NASA videos: 2012 Transit of Venus, ISS Transit of Venus]

  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 15, 2012 there were 1311 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2012 LJ
Jun 10
1.6 LD
--
33 m
2012 LT
Jun 11
5.2 LD
--
30 m
2002 AC
Jun 16
62.2 LD
--
1.2 km
1999 BJ8
Jun 16
68.8 LD
--
1.1 km
2005 GO21
Jun 21
17.1 LD
--
2.2 km
2012 LU
Jun 23
5.8 LD
--
42 m
2003 KU2
Jul 15
40.2 LD
--
1.3 km
2004 EW9
Jul 16
46.8 LD
--
2.1 km
2002 AM31
Jul 22
13.7 LD
--
1.0 km
37655 Illapa
Aug 12
37 LD
--
1.2 km
2000 ET70
Aug 21
58.5 LD
--
1.0 km
1998 TU3
Aug 25
49.2 LD
--
4.9 km
2009 AV
Aug 26
62.8 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
Trade Show Displays
   
  more links...
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