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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: 267.5 km/sec
density: 0.6 protons/cm3
explanation | more data
Updated: Today at 2247 UT
X-ray Solar Flares
6-hr max: A0
2245 UT Nov23
24-hr: A0
2245 UT Nov23
explanation | more data
Updated: Today at: 2245 UT
Daily Sun: 23 Nov 08
The sun is blank--no sunspots. Credit: SOHO/MDI

more images: from Andy Yeung of Hong Kong
Sunspot number: 0
What is the sunspot number?
Updated 20 Nov. 2008
Far side of the Sun:
This holographic image reveals one or two small sunspots on the far side of the sun. Image credit: SOHO/MDI
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 2
quiet
explanation | more data
Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
What is the auroral oval?
Interplanetary Mag. Field
Btotal: 2.5 nT
Bz: 0.3 nT north
explanation | more data
Updated: Today at 2247 UT
Coronal Holes:
A solar wind stream flowing from the indicated coronal hole should reach Earth on Nov. 25th or 26th. Credit: SOHO Extreme UV Telescope
SPACE WEATHER
NOAA Forecasts
Updated at: 2008 Nov 23 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: 2008 Nov 23 2201 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
05 %
15 %
MINOR
01 %
05 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
05 %
20 %
MINOR
01 %
10 %
SEVERE
01 %
01 %
What's up in Space
November 23, 2008
NORTHERN LIGHTS: Did you sleep through the auroras of November? Next time get a wake-up call: Spaceweather PHONE.  

ISS TOOLBAG: When Endeavour astronaut Heidemarie Stefanyshyn-Piper dropped her toolbag during a spacewalk on Nov. 18th and it floated away, mission controllers probably figured they'd seen the last of it. Think again. Last night, Nov. 22nd, veteran satellite observer Kevin Fetter video-recorded the backpack-sized bag gliding over his backyard observatory in Brockville, Ontario: 900 kB video. "It was easily 8th magnitude or brighter as it passed by the 4th magnitude star eta Pisces," he says. Spaceweather's satellite tracker is monitoring the toolbag; click here for flybys.

CORONAL HOLE: Japan's Hinode spacecraft is monitoring a dark hole on the sun--a coronal hole:

Coronal holes are places in the sun's atmosphere where the magnetic field opens up and allows solar wind to escape. In images taken by X-ray telescopes, such as the one Hinode uses, coronal holes appear dark because the hot glowing gas which would otherwise fill them has spilled out in the solar wind. A stream of gas flowing from this particular hole is heading for Earth. High-latitude sky watchers should be alert for auroras when it arrives on Nov. 25th or 26th.

Nov. 2008 Aurora Gallery
[Previous Novembers: 2007, 2006, 2004, 2003, 2001, 2000]

3D BEHEMOTH: It masses 300,214 kg, has wings almost as wide as a football field, occupies 12,626 cubic feet of living space--and now it's jumping out of your computer screen. Put on your 3D glasses and behold in the International Space Station:


Click to view the full-sized 3D image

Graphic artist Patrick Vantuyne of Belgium created the anaglyph using photos taken from space shuttle Endeavour on Nov. 16th. Endeavour was hovering near the ISS for a mutual inspection prior to docking hours later. When Endeavour did link up, it added about 110,000 kg of mass and 23 meters of wingspan to the complex. If only a third spacecraft had been present to take photos of that....

Docked together, Endeavour and the ISS are circling Earth and flying over many towns and cities after dark. They're bright, eye-catching, and if you look at them through a telescope, genuinely 3D. Check the Simple Satellite Tracker for flybys of your hometown.

       
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 23, 2008 there were 999 potentially hazardous asteroids.
Nov. 2008 Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2008 TX3
Nov. 1
9 LD
19
45 m
2008 UT95
Nov. 2
1.5 LD
17
15 m
2008 UC7
Nov. 2
4.5 LD
20
17 m
2008 VM
Nov. 3
0.1 LD
20
4 m
2008 VA4
Nov. 4
7.7 LD
17
49 m
2008 VB4
Nov. 4
1.3 LD
18
10 m
2008 VC
Nov. 4
4.4 LD
20
18 m
4179 Toutatis
Nov. 9
20 LD
14
3.8 km
2008 WO2
Nov. 16
1.0 LD
20
5 m
2004 XK3
Nov. 18
1.8 LD
15
60 m
2008 VZ3
Nov. 22
5.7 LD
18
55 m
2008 WD
Nov. 24
6.9 LD
19
30 m
2008 WC
Nov. 26
5.1 LD
19
23 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
  a one-stop hub for all things scientific
  more links...
   
©2008, SpaceWeather.com -- This site is penned daily by Dr. Tony Phillips.
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