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Solar wind
speed: 375.4 km/sec
density: 1.8 protons/cm3
explanation | more data
Updated: Today at 2351 UT
X-ray Solar Flares
6-hr max: B8
1756 UT Feb10
24-hr: M1
0000 UT Feb10
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 10 Feb 15
Sunspot AR2280 has a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares. Credit: SDO/HMI

Sunspot number: 82
What is the sunspot number?
Updated 10 Feb 2015

Spotless Days
Current Stretch: 0 days
2015 total: 0 days (0%)

2014 total: 1 day (<1%)
2013 total: 0 days (0%)
2012 total: 0 days (0%)
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)

Update 10 Feb 2015

The Radio Sun
10.7 cm flux: 146 sfu
explanation | more data
Updated 10 Feb 2015

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/Ovation
Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 3
explanation | more data
Interplanetary Mag. Field
Btotal: 6.2 nT
Bz: 1.9 nT north
explanation | more data
Updated: Today at 2351 UT
Coronal Holes: 10 Feb 15
A There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.
Noctilucent Clouds As of Nov. 22, 2014, the season for southern hemisphere noctilucent clouds is underway. The south polar "daisy" pictured below is a composite of near-realtime images from NASA's AIM spacecraft.
Switch view: Ross Ice Shelf, Antarctic Penninsula, East Antarctica, Polar
Updated at: 02-09-2015 16:55:03
NOAA Forecasts
Updated at: 2015 Feb 10 2200 UTC
0-24 hr
24-48 hr
30 %
30 %
05 %
05 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2015 Feb 10 2200 UTC
0-24 hr
24-48 hr
15 %
15 %
01 %
01 %
01 %
01 %
High latitudes
0-24 hr
24-48 hr
20 %
20 %
25 %
25 %
20 %
20 %
Tuesday, Feb. 10, 2015
What's up in space

Learn to photograph Northern Lights like a pro. Sign up for Peter Rosen's Aurora Photo Courses in Abisko National Park.

Lapland tours

DSCOVR LAUNCH TODAY: NOAA, NASA and the US Air Force are about to launch an important space weather satellite: the Deep Space Climate Observatory, a.k.a. "DSCOVR". The launch window opens on Tuesday, Feb. 10 at 6:05 pm EST with a backup launch opportunity on Wednesday, Feb. 11 at 6:03 pm. DSCOVR will monitor solar wind from the L1 point one-million miles upstream from Earth and succeed the aging ACE spacecraft in providing early warnings of incoming CMEs and other solar storms. Check the launch blog for updates.

ACTIVE SUNSPOT: The magnetic field of sunspot AR2282 does not appear to be unstable ... yet it is. Proof came on Feb. 9th at 23:35 UT when the sunspot's magnetic canopy unexpectedly erupted, producing an M2-class solar flare. NASA's Solar Dynamics Observatory recorded the blast:

The explosion produced a coronal mass ejection (CME). Radio emissions produced by shock waves at the leading edge of the CME suggest an expansion velocity of more than 1000 km/s (2.2 million mph). The storm cloud is not on a sun-Earth line, and will probably miss our planet, but this requires confirmation from analysis of incoming coronagraph data. Stay tuned. Solar flare alerts: text, voice

Realtime Space Weather Photo Gallery

ZODIACAL LIGHT: Around the world, people far from city lights are noticing a luminous triangle rising out of the western sky at sunset. It is the Zodiacal Light. Last night, Feb. 9th, Alan Dyer photographed the phenomenon from the City of Rocks State Park in New Mexico:

Dyer, author of "How to Shoot and Process Nightscapes," describes the photo: "The tower of light at left is the Zodiacal Light. At right is the setting autumn Milky Way. At the base of the Zodiacal Light is bright Venus just setting, with fainter Mars above it."

Zodiacal light is sunlight reflected from billions of dust particles littering the solar system's orbital plane. These are the same dust particles that make meteors when they occasionally hit Earth's atmosphere. Zodiacal Light is very faint, so dark skies are required to see it. Now is a good time to look because the Moon is absent from the evening sky. A trip to the countryside on a moonless February evening often results in a Zodiacal Light sighting. Try it!

Realtime Zodiacal Light Photo Gallery

SPACE ROSES FOR VALENTINE'S DAY: Valentine's Day is just around the corner, and many people are preparing to give the gift of roses. But wait. How about space roses, instead? On Jan. 28th, and the students of Earth to Sky Calculus flew a batch of rose seeds to the stratosphere. They went aloft inside a standard Space Weather Buoy, nestled alongside cameras, radiation sensors and GPS trackers. Here is a picture of the seeds 107,300 feet above Earth's surface:

En route to the edge of space, the seeds experienced cosmic radiation levels, temperatures, and pressures akin to those on the planet Mars. What kind of roses will these "space seeds" produce? We only know this: A seed packet of space roses would make a unique Valentine's gift.

Get yours now. For only $49.95 we will mail you a packet of seeds along with a Valentine's card authenticating their flight. 100% of funds received will be used for student research. For more information, contact Dr. Tony Phillips

Realtime Aurora Photo Gallery

Realtime Comet Photo Gallery

  All Sky Fireball Network

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics. Daily results are presented here on

On Feb. 10, 2015, the network reported 28 fireballs.
(28 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

  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 February 10, 2015 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Miss Distance
2015 BF92
Feb 7
8.5 LD
68 m
2015 CL
Feb 8
4.3 LD
36 m
2015 CM
Feb 9
8.4 LD
25 m
2015 CG
Feb 11
7.1 LD
33 m
2015 AZ43
Feb 15
7.7 LD
87 m
2000 EE14
Feb 27
72.5 LD
1.6 km
2063 Bacchus
Apr 7
76 LD
1.6 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.
  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
  the underlying science of space weather
Space Weather Alerts
  more links...
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