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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: 417.0 km/sec
density: 3.7 protons/cm3
explanation | more data
Updated: Today at 2245 UT
X-ray Solar Flares
6-hr max: A0
2245 UT Jun19
24-hr: A0
1435 UT Jun19
explanation | more data
Updated: Today at: 2245 UT
Daily Sun: 19 June 07
The sun is blank--no sunspots. Credit: SOHO/MDI
Sunspot number: 0
What is the sunspot number?
Updated 17 June 2007
Far side of the Sun:
This holographic image reveals one or two small spots on the farside of the sun. Image credit: SOHO/MDI
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 3
quiet
explanation | more data
Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Updated: 2007 Jun 19 2123 UT
Interplanetary Mag. Field
Btotal: 4.9 nT
Bz: 1.5 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 June 21st or 22nd. Credit: SOHO Extreme Ultraviolet Telescope
SPACE WEATHER
NOAA Forecasts
Updated at: 2007 Jun 19 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 Jun 19 2203 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
25 %
30 %
MINOR
15 %
20 %
SEVERE
05 %
10 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
30 %
35 %
MINOR
20 %
25 %
SEVERE
10 %
15 %
What's up in Space
June 19, 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.

SPACESHIP SIGHTINGS: Space shuttle Atlantis undocked from the International Space Station (ISS) this morning, and tonight the pair will fly in tandem over many US towns and cities. The two spacecraft will appear as distinct points of light, first the ISS followed by the shuttle. When should you look? There are two ways to find out: Sign up for flyby alerts from Spaceweather PHONE or check the flyby time tables at Heavens Above.

CORRECTION: Earlier we reported that Atlantis would lead the ISS across the sky. In fact, the reverse will occur: ISS comes first, followed by Atlantis. Apologies for the mix-up.

SPACESHIP SIGHTINGS II: Last night, just hours before undocking, ISS and Atlantis flew over Renton, Washington. "It was my last chance to see them together before Atlantis comes home," says amateur astronomer Tom Gwilym who took these pictures through his hand-guided 12-inch Meade LX200:

Tom's images show the station's new solar arrays, which were unfurled by the crew of Atlantis during their 9-day construction mission to the ISS. The new arrays not only add power to the ISS, they also make the station bigger and easier to see from the ground. If the ISS glides over your hometown tonight, try looking at it through your backyard telescope. The view is out of this world.

DAYTIME ECLIPSE OF VENUS: "It was a race with the clouds, and I won!" says Peter Heinzen of Wallis, Switzerland, who yesterday snapped this picture of Venus emerging from eclipse behind the crescent moon:


Photo details: Canon EOS 20D, 1/500 seconds, 100 ASA

The eclipse--a.k.a. "lunar occultation"--was visible from Europe, the Middle East and India. Even in broad daylight, people could see it with their unaided eyes. Telescopes trained on the Moon's limb revealed the crescent shape of Venus in close proximity to lunar mountains and craters. "It was a great view!" says photographer Günther Strauch of Borken, NRW, Germany. Browse the gallery for more:

Eclipse of Venus Photo Gallery
Updated June 19, 2007

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 June 19, 2007 there were 871 potentially hazardous asteroids.
June-July 2007 Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2005 AD13
June 18
33 LD
16
1.2 km
2007 FV42
July 2
53 LD
15
1.2 km
2007 DT103
July 29
9.3 LD
15
550 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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