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


X-ray Solar Flares

6-hr max:
C1 1855 UT Nov15
24-hr: C1 1855 UT Nov15
explanation | more data
Updated: Today at 2245 UT

Daily Sun: 15 Nov '06

New sunspot 925 is growing quickly. Credit:
SOHO/MDI

Sunspot Number: 41
What is the sunspot number?
Updated: 14 Nov 2006

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

Interplanetary Mag. Field
Btotal: 6.8 nT
Bz:
5.6 nT south
explanation | more data
Updated: Today at 2247 UT

Coronal Holes:

There are no large coronal holes on the Earth-facing side of the Sun. Credit: NOAA GOES-13.


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 2006 Nov 14 2203 UTC
FLARE 0-24 hr 24-48 hr
CLASS M 05 % 05 %
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 2006 Nov 14 2203 UTC
Mid-latitudes
0-24 hr 24-48 hr
ACTIVE 10 % 25 %
MINOR 01 % 10 %
SEVERE 01 % 01 %

High latitudes
0-24 hr 24-48 hr
ACTIVE 15 % 30 %
MINOR 01 % 15 %
SEVERE 01 % 05 %

What's Up in Space -- 15 Nov 2006
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Autumn is here, and it's a wonderful time for stargazing. Find out what's up from Spaceweather PHONE.

RETURN OF THE LEONIDS: Earth is heading for a cloud of comet dust that could produce an outburst of Leonid meteors on Nov. 19th. Get the full story from Science@NASA.

AROUND THE SUN: If this happened at midnight, it would be big news for sky watchers. Instead it's happening at noon when no one can see it.

"It" is a stunning close encounter between the two brightest planets: Venus and Jupiter are less than 0.5o apart today. The get-together is happening just left of the Sun:

While humans cannot see the event, SOHO can. The spacecraft's coronagraph blocks the sun's glare, revealing not only Venus and Jupiter but also Mars and Zubenelgenubi having their own close encounter. There's a lot going on around the sun: Join SOHO for a ringside seat.

DAY OWL: "I thought owls only come out at night," says photographer Gary Palmer of Los Angeles, "but sunspot 923 proved otherwise. It looks just like an owl in flight." (continued below)


Sunspot 923, the view through a SolarMax70. Credit: Gary Palmer.

The eyes of this bird are two halves of the sunspot, which is suddenly breaking apart. The split may signal an increase in activity from sunspot 923, which is overdue for a big flare. Stay tuned.

more images: from Wayne Wooten of Pensacola, Florida; from Adrian Guzman of San Jose, California.

BONUS: Transit of Mercury Photo Gallery



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 15 Nov 2006 there were 829 known Potentially
Hazardous Asteroids

Oct-Nov 2006 Earth-asteroid encounters
ASTEROID

 DATE
(UT)

MISS DISTANCE

MAG.

 SIZE
2006 UC185

Oct. 23

6.3 LD

17

95 m
2006 UZ215

Oct. 27

7.6 LD

19

35 m
2006 UJ185

Oct. 30

0.7 LD

17

10 m
2006 UA216

Oct. 31

6.0 LD

16

90 m
2006 UQ216

Nov. 7

5.6 LD

21

15 m
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 Solar X-ray Imager.

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

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.

Lists of Coronal Mass Ejections -- from 1998 to 2001

Mirages: Mirages in Finland; An Introduction to Mirages;

NOAA Solar Flare and Sunspot Data: 1996, 1997, 1998, 1999; 2000; 2001; 2002; 2003; 2004; 2005; Jan-Mar 2006;

Space Audio Streams: (University of Florida) 20 MHz radio emissions from Jupiter: #1, #2, #3, #4; (NASA/Marshall) INSPIRE: #1; (Stan Nelson of Roswell, New Mexico) meteor radar: #1, #2;

GLOSSARY | SPACE WEATHER TUTORIAL

This site is penned daily by Dr. Tony Phillips: email


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