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Solar wind
speed: 405.2 km/sec
density: 1.3 protons/cm3
explanation | more data
Updated: Today at 2347 UT
X-ray Solar Flares
6-hr max: B5
1948 UT Aug13
24-hr: B7
1117 UT Aug13
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 13 Aug 14
Solar activity is very low. None of these sunspots poses a threat for strong flares. Credit: SDO/HMI
Sunspot number: 80
What is the sunspot number?
Updated 13 Aug 2014

Spotless Days
Current Stretch: 0 days
2014 total: 1 day (<1%)
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%)

Update
13 Aug 2014

The Radio Sun
10.7 cm flux: 105 sfu
explanation | more data
Updated 13 Aug 2014

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: 3.3 nT
Bz: 2.5 nT north
explanation | more data
Updated: Today at 2347 UT
Coronal Holes: 13 Aug 14
There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.

Spaceweather.com 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: 08-13-2014 16:55:08
SPACE WEATHER
NOAA Forecasts
Updated at: 2014 Aug 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: 2014 Aug 13 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
20 %
10 %
MINOR
05 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
30 %
15 %
SEVERE
25 %
15 %
 
Wednesday, Aug. 13, 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

PERSEID METEOR SHOWER--PEAKING NOW: According to the International Meteor Organization, the Perseid Meteor Shower is peaking now with as many as 50 meteors per hour. These rates are sharply reduced, compared to a normal year, because of the glare from the waning supermoon. It is still, however, a significant shower. If it is dark where you live, go outside and look up. Otherwise, try listening to Perseid radar echoes on Space Weather Radio.

Last night, Amir H. Abolfath caught this Perseid fireball streaking across the moonlit skies of Tehran, Iran:

"Despite the moonlight and clouds," says Abolfath, "I still saw some good Perseids."

For more views from around the world, browse the realtime meteor gallery:

Realtime Meteor Photo Gallery

CONVERGING PLANETS: Venus and Jupiter are converging for a stunning conjunction in the pre-dawn sky. At closest approach on August 18th, the two planets will be just 0.2 degrees apart, tight enough to hide behind the tip of your outstretched pinky. Flying astrophotographer, pilot Brian Whittaker, photographed the converging pair 35,000 feet over Northern Ontario, Canada, on August 12th:

"I spotted Jupiter with Venus just 6 days before the super conjunction," says Whittaker. "It was a beautiful view--and it's only going to get better."

Observing tips: Look east about 30 minutes before sunrise. A clear view of the horizon is required to see the low-hanging pair. Each morning between now and the 18th the distance between the two will decrease as they converge for their dramatic meeting next Monday.

No special optics are required to see the amazingly bright pair, but if you have binoculars, use them.  A quick scan of the sky around Venus and Jupiter on August 18th reveals that the two worlds are not alone.  The planets are converging right beside M44, the Beehive Cluster. Located about 500 light years from Earth, this busy cluster of stars is barely visible to the naked eye, but it is an easy target for ordinary binoculars.  At first glance it might seem that a pair of supernovas has gone off inside the cluster—but that's just Venus and Jupiter passing by.

Photographers, if you take pictures of the morning show, submit them here.

Realtime Space Weather Photo Gallery


Realtime Comet Photo Gallery


Realtime Aurora Photo Gallery


Realtime NLC 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 Spaceweather.com.

On Aug. 13, 2014, the network reported 163 fireballs.
(99 Perseids, 61 sporadics, 1 Northern Delta Aquarid, 1 Southern Delta Aquarid, 1 Southern Iota Aquarid)

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 August 13, 2014 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
2001 RZ11
Aug 17
34.2 LD
2.2 km
2013 WT67
Aug 17
16.1 LD
1.1 km
2013 RZ53
Sep 9
1.9 LD
3 m
2002 CE26
Sep 9
47.9 LD
1.8 km
2009 RR
Sep 16
2 LD
34 m
2006 GQ2
Sep 19
65.9 LD
1.1 km
2009 FG19
Sep 26
34.6 LD
1.1 km
2014 NE52
Sep 30
61.2 LD
1.0 km
2001 EA16
Oct 7
35.5 LD
1.9 km
2011 TB4
Oct 9
5.8 LD
34 m
2003 UC20
Oct 31
52.4 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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