You are viewing the page for Jun. 23, 2007
  Select another date:
<<back forward>>
SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
SPACE WEATHER
Current conditions
Solar wind
speed: 517.7 km/sec
density: 0.9 protons/cm3
explanation | more data
Updated: Today at 2246 UT
X-ray Solar Flares
6-hr max: A0
2245 UT Jun23
24-hr: A0
2245 UT Jun23
explanation | more data
Updated: Today at: 2245 UT
Daily Sun: 23 June 07
The sun is blank--no sunspots. Credit: SOHO/MDI
Sunspot number: 0
What is the sunspot number?
Updated 23 June 2007
Far side of the Sun:
This holographic image reveals no large sunspots on the farside of the sun. Image credit: SOHO/MDI
Planetary K-index
Now: Kp= 3 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 23 2135 UT
Interplanetary Mag. Field
Btotal: 3.7 nT
Bz: 0.2 nT north
explanation | more data
Updated:Today at 2246 UT
Coronal Holes:
Earth is inside a solar wind stream flowing from the indicated coronal hole. Credit: SOHO Extreme Ultraviolet Telescope
SPACE WEATHER
NOAA Forecasts
Updated at: 2007 Jun 23 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 23 2203 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
25 %
25 %
MINOR
10 %
10 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
30 %
30 %
MINOR
15 %
15 %
SEVERE
05 %
05 %
What's up in Space
June 23, 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.

SOLAR ACTIVITY: The face of the sun may be blank, but the edge is seething with activity. This prominence was photographed yesterday by Eric Roel of Valle de Bravo, México and it remains visible today. If you have a solar telescope, take a look.

WINGED SPACESHIP: Space shuttle Atlantis has landed, but the International Space Station (ISS) is still in orbit and flying over many US cities after dark this weekend. If you glimpse the ISS in the eyepiece of a backyard telescope, this is what you might see:


Photo details: Canon Digital Rebel 350D, Takahashi Mewlon 250 Telescope.

"I took this hand-guided photo with a digital camera and a 10-inch telescope," says photographer John Cordiale of Queensbury, New York. "It was quite a sight."

The copper-colored wings are solar arrays. Two weeks ago, the one on the right didn't exist. It was unfurled for the first time on June 12th by astronauts from Atlantis. Measuring 240 feet from tip to tip, the arrays provide power and a pleasing symmetry to the ISS.

Would you like a call when the ISS is about to fly over your home town? Sign up for SpaceWeather PHONE.

BALL OF FIRE: On June 14th photographer Mila Zinkova stood on a beach near her home in San Francisco and looked out across the waves. In the distance, a ball of fire emerged from the smokestack of a passing ship:

Really, it was the sun. Green flash and mirage specialist Andrew Young explains: "Thermal turbulence in the ship's exhaust plume is scattering light from the sun into the plume, with a deflection of several minutes of arc." Later, as the sun set behind the plume, the distortion grew producing a figure that "looked like a solar prominence--right here on Earth," says Minkova.

It all goes to show, you never know what you might see when you look at the sunset.

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 23, 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.
©2019 Spaceweather.com. All rights reserved.