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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: 285.4 km/sec
density: 2.0 protons/cm3
explanation | more data
Updated: Today at 2244 UT
X-ray Solar Flares
6-hr max: A0
2245 UT Nov05
24-hr: A0
2245 UT Nov05
explanation | more data
Updated: Today at: 2245 UT
Daily Sun: 05 Nov 07
The sun is blank--no sunspots. Credit: SOHO/MDI
Sunspot number: 0
What is the sunspot number?
Updated 03 Nov 2007
Far side of the Sun:
This holographic image reveals no sunspots on the far side of the sun. Image credit: SOHO/MDI
Planetary K-index
Now: Kp= 0 quiet
24-hr max: Kp= 1
quiet
explanation | more data
Current Auroral Oval:

Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Updated:
What is the auroral oval?
Interplanetary Mag. Field
Btotal: 2.9 nT
Bz: 2.2 nT north
explanation | more data
Updated: Today at 2246 UT
Coronal Holes:
A minor solar wind stream flowing from this coronal hole should reach Earth on or about Nov. 8th. Credit: SOHO Extreme UV Telescope
SPACE WEATHER
NOAA Forecasts
Updated at: 2007 Nov 05 2203 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: 2007 Nov 05 2203 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
01 %
01 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
05 %
05 %
MINOR
01 %
01 %
SEVERE
01 %
01 %

What's up in Space
November 5, 2007
Where's Saturn? Is that a UFO--or the ISS? What's the name of that star? Get the answers from mySKY--a fun new astronomy helper from Meade.

VENUS AT NOON: Venus is bright enough to see in broad daylight; the trick is finding it in the wide blue sky. Today it's easy because Venus is located beside the crescent Moon. Find the Moon and scan the sky nearby for a silver pinprick of light--Venus at noon!

MONDAY MORNING SKY SHOW: "This was worth waking up for," says Scott Peshia of Tucson, Arizona, who rolled out of bed at 4:30 am to see the International Space Station and space shuttle Discovery glide past Venus and the Moon before sunrise:

After the flyby, a couple of Taurid meteors appeared. "The first was extremely fast and long and the second was a short, very bright burst which lit up the landscape around me." It was a fantastic sky show.

The show's not over. For the next 24 hours, Discovery and the International Space Station will orbit Earth together, appearing in the night sky as side-by-side points of light. Check Heavens-Above for flyby times or sign up for Spaceweather PHONE to receive email and phone alerts when the ISS is about to fly over your hometown.

more images: from Becky Ramotowski of Tijeras, New Mexico; from Mike Lynch of Frankfort, Kentucky.

COMET TAIL: Long exposures are starting to reveal the ragged tail of Comet 17P/Holmes. It took Michael Jäger eighteen minutes to record this view through his 8-inch telescope in Stixendorf, Austria:

The tail, which color photos show to be blue, looks like the aftermath of a terrific explosion. Indeed, Comet 17P/Holmes did explode on Oct. 23rd, brightening a million-fold to naked eye visibility. But the appearance of the tail is probably not a consequence of that blast. Why not? It's our point of view. Usually we see comet tails from the side and they make a long graceful arc through space. The tail of Comet Holmes, however, points almost directly away from Earth. Instead of seeing it from the side, we're seeing it end-on, resulting in its peculiar frayed appearance.

Everything about Comet Holmes seems a little peculiar--including the fact that anyone can see it. It's an "urban comet" visible to the naked eye among city lights as well as from the darker countryside. After sunset, look north for an expanding fuzzball in the constellation Perseus: sky map. The comet is about as bright as the stars of the Big Dipper and makes a fine target for both binoculars and backyard telescopes.

Comet 17P/Holmes Photo Gallery
[Interactive World Map of Comet Photos]
[sky map] [ephemeris] [3D orbit] [Night Sky Cameras]

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 5, 2007 there were 896 potentially hazardous asteroids.
Nov. 2007 Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2005 GL
Nov. 8
8.0 LD
16
280 m
2007 UL12
Nov. 12
18.4 LD
17
325 m
1989 UR
Nov. 24
27.6 LD
15
880 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 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.
Daily Sunspot Summaries
  From the NOAA Space Environment Center
Current Solar Images
  from the National Solar Data Analysis Center
  more links...
©2007, SpaceWeather.com -- This site is penned daily by Dr. Tony Phillips.
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