You are viewing the page for Oct. 13, 2010
  Select another date:
<<back forward>>
SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 322.8 km/sec
density: 5.7 protons/cm3
explanation | more data
Updated: Today at 2345 UT
X-ray Solar Flares
6-hr max: B1
1705 UT Oct13
24-hr: B4
1625 UT Oct13
explanation | more data
Updated: Today at: 2340 UT
Daily Sun: 13 Oct 10
Sunspot 1112 is decaying. Credit: SDO/HMI. 2-day movie: 5 MB mpg
Sunspot number: 11
What is the sunspot number?
Updated 12 Oct 2010

Spotless Days
Current Stretch: 0 days
2010 total: 45 days (16%)
2009 total: 260 days (71%)
Since 2004: 813 days
Typical Solar Min: 486 days
explanation | more info
Updated 12 Oct 2010


The Radio Sun
10.7 cm flux: 75 sfu
explanation | more data
Updated 12 Oct 2010

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 2
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 1.1 nT
Bz: 0.4 nT north
explanation | more data
Updated: Today at 2346 UT
Coronal Holes: 13 Oct 10
A coronal hole is emerging over the sun's northeasten limb. Solar wind flowing from the hole could reach Earth on or about Oct. 20th. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2010 Oct 13 2200 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: 2010 Oct 13 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
10 %
10 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
10 %
10 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
 
Wednesday, Oct. 13, 2010
What's up in space
 

iPHONE VS ANDROID! Actually, it doesn't matter which phone you carry. Our cool, new app turns both smartphones into field-tested satellite trackers. Learn more.

 

SPACE STATION MOVIE: The International Space Station is flying over Europe and North America this week, shining brightly in the pre-dawn sky. On Oct. 11th, German astrophotographer Dirk Ewers trained his 5-inch refractor on the ISS and recorded a must-see movie. "It was nice to see sunlight glinting from the European Columbia module and the autumn-like color of the solar panels," says Ewers. Readers, check the Simple Satellite Tracker (or your cell phone) for a flyby of your own.

MONTANA AURORAS: On Oct. 11th, a bright curtain of Northern Lights unfurled along the US-Canadian border. Watching from Glasgow in northern Montana, Ben Fyngyrz took this picture:


Photo details: Canon EOS 50D, 4 seconds, ISO 1600, f/1.8

"The lights didn't make it all the way down to my latitude," he says , "but the side-view was interesting because it showed the vertical structure of the auroras." More of Ben's photos show dark clouds and a 19th century prairie house backlit by the auroras--very pretty.

The display was triggered by a "south-pointing IMF." In other words, the interplanetary magnetic field near Earth tilted south, opening a crack in Earth's magnetosphere. Solar wind poured in and fueled a G1-class geomagnetic storm. The storm is over now, but the lights are still dancing in the gallery.

UPDATED: October 2010 Aurora Gallery
[previous Octobers: 2009, 2008, 2007, 2006, 2004, 2003, 2002, 2001]

DARK FILAMENT: A dark magnetic filament is stretching around the southeastern limb of the sun. "Seeing was poor today at my observatory in Selsey, UK," reports astrophotographer Pete Lawrence, "but this gorgeous filament made it well worth taking a ride on the atmospheric wobbles."

Magnetic filaments on the sun have a tendency to erupt. This one is attached to sunspot 1112. Does that make it more--or less--stable? No one knows. The magnetohydrodynamics of sunspots is so complex, not even the most powerful supercomputers on Earth can predict when they will explode. Readers with solar telescopes are encouraged to monitor this region for unexpected developments.

more images: from Z. Roy and J. Stetson of South Portland, Maine; from Steve Wainwright of Gower, S.Wales, UK


  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 13, 2010 there were 1149 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Mag.
Size
2010 TQ19
Oct 8
9.6 LD
18
37 m
2010 TS19
Oct 10
3.7 LD
18
31 m
2010 TD54
Oct 12
0.1 LD
14
7 m
2010 TB54
Oct 13
6.1 LD
20
19 m
1999 VO6
Oct 14
34.3 LD
16
1.8 km
2010 TK
Oct 16
4.5 LD
18
37 m
1998 TU3
Oct 17
69.1 LD
13
5.2 km
2010 TG19
Oct 22
1.1 LD
15
70 m
1998 MQ
Oct 23
77.7 LD
15
1.9 km
2007 RU17
Oct 29
39.2 LD
15
1.1 km
2003 UV11
Oct 30
5 LD
12
595 m
3838 Epona
Nov 7
76.8 LD
14
3.4 km
2005 QY151
Nov 16
77.7 LD
17
1.3 km
2008 KT
Nov 23
5.6 LD
21
10 m
2002 EZ16
Nov 30
73.9 LD
16
1.0 km
2000 JH5
Dec 7
47 LD
-
1.5 km
2010 JL33
Dec 9
16.6 LD
13
1.3 km
2008 EA32
Jan 7
76.5 LD
-
2.1 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 web 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 Dynamics Observatory
  Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever.
STEREO
  3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Solar and Heliospheric Observatory
  Realtime and archival images of the Sun from SOHO.
Daily Sunspot Summaries
  from the NOAA Space Environment Center
Heliophysics
  the underlying science of space weather
Science Central
   
  more links...
 
 
2010 Perseid meteor shower
SunGazer.net
Toys which are out of this world from SpaceToys.com
space weather alerts
outdoor lighting
Superior Labels - Out of this World!
Christmas Cards
satellite tracking
Compare air travel around the globe with Airfares Flights
Support SpaceWeather.com
©2010 Spaceweather.com. All rights reserved. This site is penned daily by Dr. Tony Phillips.

©2013 Spaceweather.com. All rights reserved.