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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: 354.9 km/sec
density: 6.9 protons/cm3
explanation | more data
Updated: Today at 2346 UT
X-ray Solar Flares
6-hr max: A0
2340 UT Jan14
24-hr: A0
2340 UT Jan14
explanation | more data
Updated: Today at: 2340 UT
Daily Sun: 14 Jan 09
New-cycle sunspot 1010 has faded away, leaving the sun blank. Credit: SOHO/MDI
Sunspot number: 0
What is the sunspot number?
Updated 14 Jan. 2009
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= 2
quiet
explanation | more data
Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
What is the auroral oval?
Interplanetary Mag. Field
Btotal: 7.0 nT
Bz: 2.1 nT north
explanation | more data
Updated: Today at 2347 UT
Coronal Holes:
A solar wind stream flowing from the indicated coronal hole should reach Earth on Jan. 17th or 18th. Credit: SOHO Extreme UV Telescope
SPACE WEATHER
NOAA Forecasts
Updated at: 2009 Jan 14 2201 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: 2009 Jan 14 2201 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
January 14, 2009

AURORA ALERT: Did you sleep through the Northern Lights? Next time get a wake-up call: Spaceweather PHONE.

 

AURORA WATCH: A solar wind stream is heading toward Earth, due to arrive on Jan. 17th or 18th. High-latitude sky watchers should be alert for auroras.

HOURS OF VENUS: Today, Jan. 14th, Venus reaches its maximum elongation (greatest apparent distance) from the sun. Go outside at sunset, face south, and take a long look. Venus won't set for more than three hours. Lukas Ronge sends this photo of the planet's leisurely descent over Snezka, the tallest mountain in the Czech Republic:

"This is a stack of 150 images captured by a webcam located at Snezka's snowy peak," says Ronge. "The exposures were taken at one minute intervals."

If you have a telescope, take advantage of the extra time to inspect Venus through the eyepiece. The view may surprise you: Venus is just half a planet! Like the Moon, Venus has phases, and at the moment the phase is near 50%. In Germany, Torsten Hansen photographed the dichotomy using an 8-inch Newtonian: photo.

more images: from Ugur Ikizler of Mudanya - Bursa / Turkey; from Wienie van der Oord of Eilat, Israel; from Marko of Stojnci, Slovenia;

FANTASTIC ICE HALOS: Night falls. You grab your halogen lamp and step outside into the moonlight. A bitter arctic wind tries to push you back; ice crystals sting your eyes. But what you see overhead carries you forward into the night:

"Jari Luomanen and Marko Riikonen braved the intense cold of the Finland night on January 9/10 to research halos and obtain this stunning shot showing halos from the Moon competing with those from a halogen lamp," explains atmospheric optics expert Les Cowley. "Lamps plus crystals from snow-making machines are the latest way to study ice halos: details. Here the lamp is acting as the equivalent of a low sun to create a whole set of rare arcs such as the Hastings and helic previously seen only in Antactica."

Luomanen has video-recorded the manmade halos shimmering and flashing in the night. Click here for a 6 MB snippet or visit his web site to view full-length 50+ MB reels. It's the next best thing to being there.


Comet Lulin Photo Gallery
[sky map] [Comet Hunter Telescope]

       
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 January 14, 2009 there were 1016 potentially hazardous asteroids.
Jan. 2009 Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2008 YC29
Jan. 2
3.4 LD
18
35 m
2008 YY32
Jan. 3
6.2 LD
18
40 m
2008 YG30
Jan. 4
3.6 LD
16
50 m
2008 YV32
Jan. 9
2.7 LD
19
25 m
2008 YF29
Jan. 11
9.7 LD
18
65 m
2002 AO11
Jan. 15
7.7 LD
17
120 m
1998 CS1
Jan. 17
11 LD
12
1.3 km
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 space weather bureau
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.
STEREO
  3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Daily Sunspot Summaries
  from the NOAA Space Environment Center
Current Solar Images
  from the National Solar Data Analysis Center
Science Central
  a one-stop hub for all things scientific
  more links...
   
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