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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids

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Science news and information about the Sun-Earth environment.

SPACE WEATHER
Current
Conditions

Solar Wind

speed: 594.4 km/s
density:
7.0 protons/cm3
explanation | more data
Updated: Today at 2245 UT

X-ray Solar Flares

6-hr max:
B5 1820 UT Nov06
24-hr: B7 0215 UT
explanation | more data
Updated: Today at 2245 UT

Daily Sun: 06 Nov '03
After 3 weeks of the biggest sunspots in years, the sun today is nearly blank--a welcome respite for the webmaster. Image credit: SOHO MDI

Sunspot Number: 32
What is the sunspot number?
Updated: 05 Nov 2003

Interplanetary Mag. Field
Btotal: 7.3 nT
Bz:
0.8 nT south
explanation | more data
Updated: Today at 2246 UT

Coronal Holes:

Earth could encounter a solar wind stream flowing from the indicated coronal hole as early as Nov.12th. Image credit: SOHO Extreme UV Telescope.


SPACE WEATHER
NOAA
Forecasts

Solar Flares: Probabilities for a medium-sized (M-class) or a major (X-class) solar flare during the next 24/48 hours are tabulated below.
Updated at 2003 Nov 06 2200 UTC
FLARE 0-24 hr 24-48 hr
CLASS M 10 % 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 2003 Nov 06 2200 UTC
Mid-latitudes
0-24 hr 24-48 hr
ACTIVE 35 % 20 %
MINOR 20 % 10 %
SEVERE 10 % 05 %

High latitudes
0-24 hr 24-48 hr
ACTIVE 45 % 25 %
MINOR 35 % 15 %
SEVERE 20 % 10 %

What's Up in Space -- 6 Nov 2003
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IMPACT: A coronal mass ejection hurled into space by the superflare described below swept past Earth today (Nov. 6th) at approximately 1930 UT. Mild-to-moderate geomagnetic storms and high-latitude auroras are possible during the hours ahead.

SUPERFLARE: Astronomers won't soon forget Nov. 4th, 2003--the day of the biggest explosion ever recorded in our solar system. The blast originated from giant sunspot 486, and on the Richter scale of solar flares, it measured X28. Smaller flares in the past have caused power outages and widespread auroras. The Nov. 4th explosion was not directed squarely toward Earth, and its effects so far have been relatively minimal. Even so, it was a flare to remember.

Right: Steve Rismiller of Milford, Ohio, captured this image of the flare in progress at 20:40 UT on Nov. 4th. It is the brighter of the two plumes rising above the sun's limb.

LUNAR ECLIPSE: On Saturday, Nov. 8th, the full moon will glide through our planet's shadow and turn a delightful shade of sunset-red. Get the full story from Science@NASA.

AURORAS : Last week, a series of eruptions from sunspot 486 sparked intense magnetic storms on Earth. Auroras appeared in places they are seldom seen--like Florida. On October 29th Paul Gardner photographed these auroras over Orlando: (continued below)

"We're at 28.3 degrees latitude," notes Gardner, the president of the University of Central Florida Astronomical Society. "These are the first auroras I have ever seen or photographed."

Visit our gallery of aurora pictures.



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 are on a collision course with our planet, although astronomers are finding new ones all the time.

On 6 Nov 2003 there were 542 known Potentially
Hazardous Asteroids

November 2003 Earth-asteroid encounters
ASTEROID

 MISS DISTANCE

 MAG.
Hermes

Nov. 4

18 LD

 13
1990 OS

Nov. 12

9 LD

 15
1996 GT

Nov. 12

19 LD

 13
2003 UX5

Nov. 13

32 LD

 17
1998 UT18

Nov. 28

26 LD

 15
Notes: LD is a "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 Environment Center -- The official U.S. government bureau for real-time monitoring of solar and geophysical events, research in solar-terrestrial physics, and forecasting solar and geophysical disturbances.

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. (European Mirror Site)

Daily Sunspot Summaries -- from the NOAA Space Environment Center.

Current Solar Images --a gallery of up-to-date solar pictures from the National Solar Data Analysis Center at the Goddard Space Flight Center. See also the GOES-12 Soft X-ray Imager.

Recent Solar Events -- a nice summary of current solar conditions from lmsal.com.

SOHO Farside Images of the Sun from SWAN and MDI.

The Latest SOHO Coronagraph Images -- from the Naval Research Lab

The Sun from Earth -- daily images of our star from the Big Bear Solar Observatory

List of Potentially Hazardous Asteroids -- from the Harvard Minor Planet Center.

Observable Comets -- from the Harvard Minor Planet Center.

What is the Interplanetary Magnetic Field? -- A lucid answer from the University of Michigan. See also the Anatomy of Earth's Magnetosphere.

Real-time Solar Wind Data -- from NASA's ACE spacecraft. How powerful are solar wind gusts? Read this story from Science@NASA.

More Real-time Solar Wind Data -- from the Solar and Heliospheric Observatory Proton Monitor.

Aurora Forecast --from the University of Alaska's Geophysical Institute

Daily Solar Flare and Sunspot Data -- from the NOAA Space Environment Center.

Lists of Coronal Mass Ejections -- from 1998 to 2001

What is an Iridium flare? See also Photographing Satellites by Brian Webb.

Vandenberg AFB missile launch schedule.

What is an Astronomical Unit, or AU?

Mirages: Mirages in Finland; An Introduction to Mirages;

NOAA Solar Flare and Sunspot Data: 1999; 2000; 2001; 2002; Jan-Mar., 2003; Apr-Jun., 2003;

Recent International Astronomical Union Circulars

GLOSSARY | SPACE WEATHER TUTORIAL

Editor's Note: Space weather and other forecasts that appear on this site are formulated by Dr. Tony Phillips. They are not official statements of any government agency (including NASA) nor should they be construed as guarantees of space weather or other celestial activity.

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Dr. Tony Phillips
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