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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 332.7 km/sec
density: 8.6 protons/cm3
explanation | more data
Updated: Today at 2345 UT
X-ray Solar Flares
6-hr max: B7
2300 UT Nov06
24-hr: B7
0459 UT Nov06
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 06 Nov 12
None of these small sunspots is actively flaring. Solar activity is low. Credit: SDO/HMI
Sunspot number: 47
What is the sunspot number?
Updated 06 Nov 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

Update 06 Nov 2012


The Radio Sun
10.7 cm flux: 97 sfu
explanation | more data
Updated 06 Nov 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= 2
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 8.6 nT
Bz: 4.4 nT north
explanation | more data
Updated: Today at 2345 UT
Coronal Holes: 06 Nov 12
A minor solar wind stream flowing from the indicated coronal hole should reach Earth on Nov. 4-5. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2012 Nov 06 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: 2012 Nov 06 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
05 %
05 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
15 %
15 %
SEVERE
05 %
05 %
 
Tuesday, Nov. 6, 2012
What's up in space
 

Thirty-five new items have just been added to our Meteorite Jewelry collection. Browse the Space Weather Store for something out of this world.

 
Meteorite jewelry

QUIET SUN: With no sunspots actively flaring, the sun's x-ray outut has nearly flatlined. Solar activity is very low and likely to remain so for the next 24 hours. Solar flare alerts: text, voice.

OBAMA AND ROMNEY VISIT THE EDGE OF SPACE: To commemorate the election for President of the USA, a group of high school physics students in Bishop, California, has launched a pair of Barack Obama and Mitt Romney bobbleheads to the edge of space. The payload of their helium balloon has just been recovered, and here is a first-look image of President Obama floating 120,000 feet over the California Sierras:

Stay tuned for similar pictures of Mitt, plus videos of both candidates and other data from this unusually fun suborbital space flight.

This flight was conducted by the same group of high school students who launched NASA's rubber chicken into a solar storm last March. You can learn more about them on Facebook.

SO THIS IS SOLAR MAXIMUM? Forecasters have long expected the Solar Max of 2013 to be the weakest of the Space Age. It might be even weaker than they thought. As shown in this 20-year plot of sunspot counts vs. time, the sun is underperforming:

Sunspot numbers are notoriously variable, so the actual counts could rapidly rise to meet or exceed the predicted curve. For now, however, the face of the sun is devoid of large sunspots, and there have been no strong flares in more than a week. The threshold of Solar Max looks a lot like Solar Min. NOAA forecasters estimate no more than a 1% chance of X-class solar flares in the next 24 hours.

CORONAL HOLE: NASA's Solar Dynamics Observatory is monitoring a dark hole in the sun's atmosphere, a "coronal hole." It is near the sun's western limb in this extreme ultraviolet image taken during the early hours of Nov. 5th:

Coronal holes are places where the sun's magnetic field opens up and allows the solar wind to escape. A stream of solar wind flowing from this coronal hole is expected to reach Earth on Nov. 6th. Polar sky watchers should be alert for auroras when it arrives. Magnetic storm alerts: text, voice.

Realtime Space Weather Photo Gallery

TAURID FIREBALLS: Sky watchers should be alert for fireballs in the nights ahead. Forecasters say Earth is entering a swarm of gravelly debris from comet Encke. Meteoroids the size of pebbles and small stones hitting Earth's atmosphere at 25 km/s are producing a slow drizzle of very bright fireballs flying out of the constellation Taurus. The display is expected to peak with a few fireballs every hour during the nights of Nov. 5-12.

On Nov. 2nd, Salvador Aguirre photographed a Taurid fireball streaking over Hermosillo, Mexico. Circled, the fireball was even brighter than the nearby Moon:

"Este fue un Gran Fireball!" says Aguirre, who estimates its astronomical magnitude to be -18. This means the fireball was 100 times brighter than a full Moon (magn. -13). To capture the Taurid, he used an All Sky Sentinel camera on loan from the Sandia National Laboratories.

"What always strikes me about the Taurids," notes Bill Cooke of NASA's Meteoroid Environment Office, "is how deeply they penetrate Earth's atmosphere. On average, they make it down to an altitude of 44 miles. Contrast this to the recent Orionids, which burn up at an average altitude of 58 miles. Part of this is due to the speed difference: Taurids are slow (27 km/s) while Orionids are fast (66 km/s). In addition, many Taurids are made up of stronger stuff than the Orionids."

Cooke encourages sky watchers to observe the Taurids and report their fireball counts to NASA using the Meteor Counter app--now available for Apple and for Android devices.

Realtime Meteor Photo Gallery


Realtime Aurora Photo Gallery


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

  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 November 6, 2012 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2012 VL5
Nov 2
5.1 LD
--
10 m
2012 UL171
Nov 3
7.6 LD
--
17 m
2012 UX136
Nov 4
2.7 LD
--
35 m
2007 PA8
Nov 5
16.8 LD
--
2.4 km
2012 VD5
Nov 6
1.5 LD
--
23 m
2012 VB5
Nov 9
4.7 LD
--
26 m
2012 UV136
Nov 10
5.8 LD
--
34 m
2012 UY68
Nov 14
6.7 LD
--
44 m
2010 JK1
Nov 25
9.3 LD
--
56 m
2009 LS
Nov 28
55.2 LD
--
1.1 km
2009 BS5
Dec 11
8.4 LD
--
15 m
4179 Toutatis
Dec 12
18 LD
--
2.7 km
2003 SD220
Dec 23
59.8 LD
--
1.8 km
1998 WT24
Dec 23
69.2 LD
--
1.1 km
2003 UC20
Dec 29
25.7 LD
--
1.0 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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