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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
SPACE WEATHER
Current conditions
Solar wind
speed: 383.1 km/sec
density: 0.2 protons/cm3
explanation | more data
Updated: Today at 2344 UT
X-ray Solar Flares
6-hr max: A2
2155 UT May13
24-hr: B2
0355 UT May13
explanation | more data
Updated: Today at: 2340 UT
Daily Sun: 13 May 10
There are no sunspots on the Earth-facing side of the sun. Credit: SOHO/MDI
Sunspot number: 0
What is the sunspot number?
Updated 12 May 2010

Spotless Days
Current Stretch: 4 days
2010 total: 25 days (19%)
2009 total: 260 days (71%)
Since 2004: 795 days
Typical Solar Min: 485 days
explanation | more info
Updated 12 May 2010


The Radio Sun
10.7 cm flux: 71 sfu
explanation | more data
Updated 12 May 2010

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: 4.3 nT
Bz: 0.5 nT north
explanation | more data
Updated: Today at 2346 UT
Coronal Holes:
A solar wind stream flowing from this shallow coronal hole could reach Earth on or about May 15th. Credit: SOHO Extreme UV Telescope
SPACE WEATHER
NOAA Forecasts
Updated at: 2010 May 13 2201 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: 2010 May 13 2201 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
05 %
15 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
05 %
20 %
MINOR
01 %
05 %
SEVERE
01 %
01 %
What's up in Space
May 13, 2010

NEW AND IMPROVED: Turn your iPhone or iPod Touch into a field-tested global satellite tracker. The Satellite Flybys app now works in all countries.

 

WEEKEND SPACESHIPS AND PLANETS: Sometthing special is happening this weekend. Venus and the Moon are gathering for a sunset conjunction on Saturday and Sunday, May 15th and 16th. On the same nights, the ISS is going to be flying over many US towns and cities. And if Atlantis launches on schedule--wow! People could witness a very rare meeting of the shuttle, station, Venus and the Moon. Details and observing tips may be found in today's story from Science@NASA.

3D SPACE STATION: Imagine a giant spaceship, a 750,000-lb behemoth as wide as a football field with solar wings that dwarf a modern airliner. Robotic arms are busy working around its exterior, careful to avoid a number of smaller spacecraft attached to docking ports. This amazing ship glides across the night sky--and suddenly jumps toward you in startling 3D!

You don't have to use your imagination, because it's really about to happen. First, look at the image below and cross your eyes; merge the two space stations into a single 3D object. Next, click on the image to set the scene in motion (DivX required):


Click to view a 4 MB avi movie. (DivX required)

"I made the movie on April 24th when the International Space Station passed over my home in France," says Theirry Legault. Setting adjacent video frames side by side provided the 3D effect. "All you have to do is squint."

Legault, who is legendary among astrophotographers for his extraordinary shots of spacecraft and other things, recorded the flyby through a 10" Meade ACF telescope on a modified Takahashi EM-400 mount. The trick, he says, was using a green laser to pinpoint the ISS and a custom-made double joystick to track the spacecraft as it glided across the sky. Click here for the full story.

ISS Flyby Predictions: on the web and on your iPhone.

IN THE SHADOW OF THE SKYMASTER: Have you ever been to the carnival on a sunny day, and slipped into the shadow of a midway ride for a quick break from the heat? Next time, don't forget to look up at the sun:

Robb McCaghren took the picture May 9th from a carnival on Vancouver Island, British Columbia. "The sun was surrounded by a beautiful halo, and the shadow of the Skymaster ride was the perfect place to photograph it," he says. "I used a Canon 5D MKII with a fisheye lens."

The halo was caused by sunlight shining through ice crystals in the clouds. It might have been warm on the ground, but it was freezing cold 10 km overhead where icy wisps of cirrus were drifting by. High cirrus clouds remain icy even during the hottest days of summer--so find the shadows and be alert for sun halos.


May 2010 Aurora Gallery
[previous Mays: 2008, 2005, 2004, 2003, 2002] [aurora alerts]

 
       
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 May 13, 2010 there were 1116 potentially hazardous asteroids.
April 2010 Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2010 GV23
April 5
2.1 LD
19
12 m
2010 GF7
April 8
2.8 LD
18
30 m
2010 GA6
April 9
1.1 LD
16
27 m
2010 GM23
April 13
3.4 LD
17
47 m
2005 YU55
April 19
5.9 LD
15
185 m
2009 UY19
April 23
8.8 LD
18
87 m
2002 JR100
April 29
8.0 LD
19
65 m
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 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 and Heliospheric Observatory
  Realtime and archival images of the Sun from SOHO.
STEREO
  3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Daily Sunspot Summaries
  from the NOAA Space Environment Center
Current Solar Images
  from the National Solar Data Analysis Center
Science Central
   
  more links...
   
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