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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: 784.8 km/s
density:
2.8 protons/cm3
explanation | more data
Updated: Today at 2246 UT

X-ray Solar Flares

6-hr max:
C1 1745 UT Jun07
24-hr: C8 0035 UT Jun07
explanation | more data
Updated: Today at 2245 UT

Daily Sun: 07 Jun '03
Sunspot 375 poses a threat for X-class solar flares. Image credit: SOHO/MDI

The Far Side of the Sun

This holographic image seems to show a remarkably large sunspot on the far side of the Sun. Image credit: SOHO/MDI

Sunspot Number: 98
What is the sunspot number?
Updated: 06 Jun 2003

Coronal Holes:

Earth is inside a solar wind stream flowing from the indicated coronal hole. Image credit: SOHO Extreme UV Telescope.
More about coronal holes

Interplanetary Mag. Field
Btotal: 7.2 nT
Bz:
5 nT south
explanation | more data
Updated: Today at 2247 UT


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 Jun 07 2200 UTC
FLARE 0-24 hr 24-48 hr
CLASS M 50 % 50 %
CLASS X 05 % 05 %

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 Jun 07 2200 UTC
Mid-latitudes
0-24 hr 24-48 hr
ACTIVE 40 % 40 %
MINOR 20 % 20 %
SEVERE 05 % 05 %

High latitudes
0-24 hr 24-48 hr
ACTIVE 45 % 45 %
MINOR 30 % 30 %
SEVERE 10 % 10 %

What's Up in Space -- 7 Jun 2003
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SUNSPOT WATCH: Sunspot 375 has grown impressively during the past 24 hours. It now has a twisted "beta-gamma-delta" magnetic field, which poses a threat for powerful X-class solar flares.


Growing sunspot 375, June 2nd - 7th. Image credit: SOHO

This large active region stretches nearly ten Earth-diameters from side to side, so it's easy to see. But never look directly at the sun. Use safe solar projection methods instead.

DAYLIGHT METEORS: The annual Arietid meteor shower, which peaks this year on June 8th, is a strange one: it happens during the day rather than at night. This makes the shower remarkably hard to see. Nevertheless, sky watchers sometimes spot bright Arietids skimming Earth's atmosphere at dawn--a rare but beautiful sight. Be alert for such meteors for the next few mornings. [sky map] [more information]

AURORA OUTLOOK: Earth is inside a high-speed solar wind stream flowing from a coronal hole on the sun. Sky watchers should be alert in case gusts trigger auroras tonight. The best observing sites will be at high latitudes: e.g., southern parts of Australia and New Zealand, Canada, and northern US states like Michigan and Wisconsin.

Above: Jean-Christophe Dalouzy photographed these blood-red auroras over Normandy, France, on May 29th after a coronal mass ejection struck Earth's magnetic field. [more]

SOLAR ECLIPSE: Last weekend sky watchers enjoyed a partial solar eclipse. The event was visible across four continents, but there was no better place to be than northern Scotland where the eclipse was deep and annular. Photographer Nick Francis captured this picture of the crescent sun rising over Durness, Scotland:

More images: Solar Eclipse Gallery

WEB LINKS: NOAA FORECAST | GLOSSARY | SPACE WEATHER TUTORIAL | BECOME A SUBSCRIBER | SpaceWeather PHONE



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 7 Jun 2003 there were 512 known Potentially
Hazardous Asteroids

June 2003 Earth-asteroid encounters
ASTEROID

 MISS DISTANCE

 MAG.
1998 FH12

 June 27

20 LD

 16
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.

  • LUNAR ECLIPSE: On May 15th, sky watchers from North America to Europe saw the normally-bright full moon disappear inside Earth's shadow--the first lunar eclipse of 2003. Visit our lunar eclipse gallery and see hundreds of photos from around the world.
  • LEONIDS 2002: The Leonids have come and gone, but our meteor gallery keeps growing. Check out the latest additions, which include a stunning image of 44 meteors emerging from the radiant in Leo.
  • DAWN PLANETS: Just before dawn on Sunday, Dec. 1st, the planets Venus and Mars converged and formed a lovely triangle with the slender crescent Moon. [gallery]
  • NEARBY ASTEROID: Asteroid 2002 NY40 came so close to Earth on August 18th that people could see it through binoculars or small telescopes. [gallery]
  • PERSEIDS 2002: Sky watchers spotted plenty of bright shooting stars--including some colorful earthgrazers--during the 2002 Perseid meteor shower. [gallery]
  • CRESCENT SUN: See strange shadows, weird sunsets, eclipse dogs, crescent-eyed turkeys and extraordinary rings of fire photographed during the June 10th solar eclipse. [gallery]
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.

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.

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?

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

 

 

 




 

 
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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