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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: 389.0 km/sec
density: 1.5 protons/cm3
explanation | more data
Updated: Today at 2245 UT
X-ray Solar Flares
6-hr max: A0
2245 UT Oct06
24-hr: A0
0320 UT Oct06
explanation | more data
Updated: Today at: 2245 UT
Daily Sun: 06 Oct 07
A new sunspot, provisionally numbered 972, is growing near the middle of the solar disk. So far it poses no threat for strong solar flares. Credit: SOHO/MDI
Sunspot number: 0
What is the sunspot number?
Updated 05 Oct 2007
Far side of the Sun:
This holographic image reveals no large 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
Updated:
What is the auroral oval?
Interplanetary Mag. Field
Btotal: 2.7 nT
Bz: 1 nT south
explanation | more data
Updated: Today at 2246 UT
Coronal Holes:
A solar wind stream flowing from the indicated coronal hole should reach Earth on or about Oct. 11th. Credit: Hinode X-tray Telescope
SPACE WEATHER
NOAA Forecasts
Updated at: 2007 Oct 06 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 Oct 06 2203 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
05 %
05 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
10 %
10 %
MINOR
01 %
01 %
SEVERE
01 %
01 %

What's up in Space
October 6, 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. .

DAWN SKY SHOW: Set your alarm, there's going to be a beautiful display in the pre-dawn sky on Sunday morning. The slender crescent Moon is gliding by Venus to meet up with Saturn and all three will be gathered together in a patch of sky small enough to cover with your outstretched palm. Instructions: Wake up at 5 am and look east, you can't miss it: sky map.

EXTRA--DAYLIGHT VENUS: Yesterday in England, Andy Stephens noticed Venus in broad daylight "as clearly visible as a silver spark" in the blue sky. Indeed, the planet is bright enough to see naked-eye during the day; the trick is finding it. This weekend, the Moon shows the way: "the presence of the crescent Moon near Venus will make picking up Venus much easier than normal," notes Stephens. If you see the Moon, scan the sky around it for a silver spark--no telescope required.

SUNSPOT GENESIS: A new sunspot is rapidly emerging near the center of the solar disk. Yesterday it was invisible, today it is wider than Earth. Showing just how fast the spot is growing, this SOHO movie spans less than five hours:

"Today we saw the new sunspot and experienced pareidolia, the sense of seeing faces or object in the sky," reports John Stetson of South Portland, Maine. "This sunspot looked like a flyfishing fly."

The wings of the fly are dark magnetic filaments connecting the north and south poles of the sunspot. Stetson took the picture with the aid of his students A. Groff, P. Presby and C. Keller and a Coronado SolarMax90.

Solar photographers, keep an eye on the sun this weekend. If the rapid growth continues, this lure could become very large indeed.

more images: from Cai-Uso Wohler of Bispingen, Germany; from Pavol Rapavy of Rimavska Sobota, Slovakia; from Yvan Trembley of Villepreux in France; from John M Candy of Whitley Bay, North Tyneside, UK

RED PLANET: In case you haven't heard, Earth is hurtling toward Mars for a close encounter in December. But why wait? The Red Planet is already a fine target for backyard telescopes in October. This morning in Selsey, UK, amateur astronomer Pete Lawrence took these pictures:

"During my photo session, I noticed that Mars was pretty close to the star cluster M35," notes Lawrence. "A quick check on a chart and I realized I could capture both objects in the same field of view, shown in the inset at left."

The surface features seen in Lawrence's high-resolution images aren't painted on or created by computer model--they're real. "Mars is finally starting to show some decent detail for modest backyard telescopes," agrees Joel Warren who recorded this view through his 8-inch backyard 'scope in Amarillo, Texas.

Ready to see for yourself? Mars is shining red and bright in the eastern sky before sunrise. You can't miss it: sky map.


September 2007 Aurora Gallery
[August 2007 Aurora Gallery] [Aurora Alerts]

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 October 6, 2007 there were 888 potentially hazardous asteroids.
Sept. 2007 Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2007 RF1
Sep. 2
8.5 LD
18
26 m
2007 RS1
Sep. 5
0.2 LD
17
3 m
2007 RJ1
Sep. 16
2.5 LD
16
40 m
2007 RC20
Sep. 20
5.1 LD
19
22 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 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.
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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