Solar wind
speed: 349.6 km/sec
density: 7.5 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 2310 UT
X-ray Solar Flares
6-hr max: A5
1704 UT May26
24-hr: B1
0116 UT May26
explanation | more data
Updated: Today at: 2300 UT
Daily Sun: 26 May 18
These sunspots have stable magnetic fields that pose little threat for solar flares. Credit: SDO/HMI

Sunspot number: 32
What is the sunspot number?
Updated 26 May 2018

Spotless Days
Current Stretch: 0 days
2018 total: 80 days (54%)
2017 total: 104 days (28%)
2016 total: 32 days (9%)
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%)

Updated 26 May 2018


The Radio Sun
10.7 cm flux: 76 sfu
explanation | more data
Updated 26 May 2018

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/Ovation
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 2
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 3.0 nT
Bz: 1.0 nT north
more data: ACE, DSCOVR
Updated: Today at 2309 UT
Coronal Holes: 25 May 18

Solar wind flowing from this coronal hole will reach Earh on May 28th. Credit: SDO/AIA
Noctilucent Clouds Our connection with NASA's AIM spacecraft has been restored! New images from AIM show that the southern season for noctilucent clouds (NLCs) is underway. Come back to this spot every day to see AIM's "daily daisy," which reveals the dance of electric-blue NLCs around the Antarctic Circle..
Switch view: Ross Ice Shelf, Antarctic Peninsula, East Antarctica, Polar
Updated at: 02-07-2018 17:55:05
SPACE WEATHER
NOAA Forecasts
Updated at: 2018 May 25 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: 2018 May 25 2200 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
15 %
15 %
MINOR
15 %
15 %
SEVERE
05 %
05 %
 
Saturday, May. 26, 2018
What's up in space
       
 

All-inclusive Northern Lights trips in Tromsø, Norway. Small groups, big experiences! Highly qualified guides ensure unique and unforgettable adventures with a personal touch. Visit Explore the Arctic

 

SOLAR WIND TO GRAZE EARTH: Minor geomagnetic storms and polar auroras are possible on May 28th when a stream of solar wind is expected to graze Earth's magnetic field. The gaseous material is flowing from a northern hole in the sun's atmosphere. Free: Aurora Alerts.

WEEKEND CONJUNCTION: When the sun goes down tonight, step outside and face southeast. The waxing gibbous Moon is approaching Jupiter for a conjunction in the constellation Libra:

The Moon and Jupiter will be beautifully close together all weekend long, rising together at sunset and crossing the southern sky as midnight unfolds. Take a careful look at Jupiter. Do you see a star next to the giant planet? That's Zubenelgenubli (pronounced "zoo-BEN-al-je-NEW-bee"), the brightest star in the constellation Libra. Sky maps: May 26, 27.

Realtime Space Weather Photo Gallery

JELLYFISH SPRITES OVER OKLAHOMA: On May 24th, a swarm of luminous jellyfish appeared over Oklahoma. "A swarm of jellyfish sprites, that is," says Paul Smith, who photographed them rising above an intense thunderstorm near Oklahoma City:

"The sprites were about 80 miles away from me," says Smith. "At that distance I could see over the tops of the storm cells where the jellyfish appear. I've photographed many sprites from 200 to 300 miles away. These, however, were unusually nearby, and they are my best pictures yet."

Sprites are an exotic form of upward directed lightning. Although the forms have been seen for at least a century, many scientists did not believe they existed until after 1989 when sprites were photographed by cameras onboard the space shuttle. Now "sprite chasers" like Smith routinely photograph them from their own homes.

"I have been recording sprites since last summer when I accidentally caught a few during the Perseid meteor shower," says Smith. "I have a couple of hundred events on camera now and I am out almost every night there are storms in my vicinity. This month I have driven for five hours some nights trying to find a clear view over active cells."


The blue pushpin is Smith's location; the arrow points to the sprites he saw on May 24, 2018.

Oklahoma is the epicenter of a region that we call "Sprite Alley"--a corridor stretching across the US Great Plains where intense thunderstorms produce lots of upward directed lightning. Already this year we have received reports of sprites and their stronger cousins, Gigantic Jets, from Texas to Nebraska. And summer thunderstorm season isn't even fully underway yet.

Some researchers think that sprites may be linked to cosmic rays: Subatomic particles from deep space strike the top of Earth's atmosphere, producing secondary electrons that trigger the upward bolts. If this is true, then sprites could multiply in the months and years ahead as cosmic rays intensify due to the decline of the solar cycle. More sprite images may be found on Paul Smith's Facebook page.

Realtime Sprite Photo Gallery

A CRYSTAL BALL IN THE STRATOSPHERE: Father's Day is less than a month away. To get ready, the students of Earth to Sky Calculus launched a crystal ball to the stratosphere. Watch the video as the crystal orb travels onboard a giant helium balloon 93,000 feet above Earth's surface, stretching, focusing, and inverting the incredible landscape of the Sierra Nevada mountains behind it:

The students are selling these crystal balls as a fundraiser, and you can have one for $229. The 800 gram sphere contains an embedded model of the Solar System, including the sun, eight planets and their moons. It makes an incredible gift for anyone interested in space. Dad-satisfaction guaranteed.

Each crystal ball comes with a unique gift card showing the item at the edge of space and telling the story of its flight. All proceeds support Earth to Sky Calculus and hands-on STEM research.

Far Out Gifts: Earth to Sky Store
All proceeds support hands-on STEM education


Realtime Aurora 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 Spaceweather.com.

On May. 26, 2018, the network reported 29 fireballs.
(29 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 May 26, 2018 there were 1912 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Velocity (km/s)
Diameter (m)
2018 JG1
2018-May-20
5.3 LD
8.3
45
2018 KK
2018-May-21
12.1 LD
9.1
32
2018 KF1
2018-May-21
2.2 LD
8.6
26
2018 KU2
2018-May-21
3.1 LD
7.5
16
2018 KS
2018-May-22
2.1 LD
7.7
9
2018 JK
2018-May-22
16.3 LD
12.5
81
2018 KT2
2018-May-23
2.5 LD
8.6
15
2018 KW1
2018-May-23
0.4 LD
7.3
4
2018 KP2
2018-May-24
11.8 LD
13.2
44
2018 JG2
2018-May-25
18.4 LD
6.9
61
2018 JK3
2018-May-27
19.7 LD
21.8
168
2018 KR
2018-May-28
15.7 LD
4
19
68347
2018-May-29
9.5 LD
13.3
389
2018 KN2
2018-May-29
6.1 LD
8
28
2013 LE7
2018-May-31
17.8 LD
1.7
12
2018 KE1
2018-Jun-01
10.8 LD
16.2
33
2018 EJ4
2018-Jun-10
5.6 LD
6.2
195
2015 DP155
2018-Jun-11
9 LD
4.4
170
2017 YE5
2018-Jun-21
15.6 LD
15.5
513
467309
2018-Jun-23
17.9 LD
14
355
441987
2018-Jun-24
7.3 LD
12.6
178
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.
  Cosmic Rays in the Atmosphere

Readers, thank you for your patience while we continue to develop this new section of Spaceweather.com. We've been working to streamline our data reduction, allowing us to post results from balloon flights much more rapidly, and we have developed a new data product, shown here:

This plot displays radiation measurements not only in the stratosphere, but also at aviation altitudes. Dose rates are expessed as multiples of sea level. For instance, we see that boarding a plane that flies at 25,000 feet exposes passengers to dose rates ~10x higher than sea level. At 40,000 feet, the multiplier is closer to 50x. These measurements are made by our usual cosmic ray payload as it passes through aviation altitudes en route to the stratosphere over California.

What is this all about? Approximately once a week, Spaceweather.com and the students of Earth to Sky Calculus fly space weather balloons to the stratosphere over California. These balloons are equipped with radiation sensors that detect cosmic rays, a surprisingly "down to Earth" form of space weather. Cosmic rays can seed clouds, trigger lightning, and penetrate commercial airplanes. Furthermore, there are studies ( #1, #2, #3, #4) linking cosmic rays with cardiac arrhythmias and sudden cardiac death in the general population. Our latest measurements show that cosmic rays are intensifying, with an increase of more than 13% since 2015:


Why are cosmic rays intensifying? The main reason is the sun. Solar storm clouds such as coronal mass ejections (CMEs) sweep aside cosmic rays when they pass by Earth. During Solar Maximum, CMEs are abundant and cosmic rays are held at bay. Now, however, the solar cycle is swinging toward Solar Minimum, allowing cosmic rays to return. Another reason could be the weakening of Earth's magnetic field, which helps protect us from deep-space radiation.

The radiation sensors onboard our helium balloons detect X-rays and gamma-rays in the energy range 10 keV to 20 MeV. These energies span the range of medical X-ray machines and airport security scanners.

The data points in the graph above correspond to the peak of the Reneger-Pfotzer maximum, which lies about 67,000 feet above central California. When cosmic rays crash into Earth's atmosphere, they produce a spray of secondary particles that is most intense at the entrance to the stratosphere. Physicists Eric Reneger and Georg Pfotzer discovered the maximum using balloons in the 1930s and it is what we are measuring today.

  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
NOAA 27-Day Space Weather Forecasts
  fun to read, but should be taken with a grain of salt! Forecasts looking ahead more than a few days are often wrong.
Aurora 30 min forecast
  from the NOAA Space Environment Center
Heliophysics
  the underlying science of space weather
Spaceweather.com welcomes two supporters of science communication: SEO Phoenix AZ and CRAS, the Conservatory of Recording Arts and Sciences. Only the best social media jobs in the United States
   
Look no further to find the best Comox Valley Real Estate listings and homes for sale
   
Okanagan Real Estate
   
Buy real active Instagram followers
Guide for best car parts at prettymotors.com
   
Chicago SEO Expert
   
Search Kelowna Real Estate Listings & Homes for Sale easily.
Find help on all Calgary Homes For Sale and Real Estate Listings. Great source for Edmonton Real Estate Listings & Homes For Sale
   
Reviews here can help you to pick up best memory foam mattresses.
  These links help Spaceweather.com stay online. Thank you to our supporters!
  more links...
 
 




 

space weather alerts

Support SpaceWeather.com

Sponsored link:
Business web design and SEO

Sponsored link:
Traffic Masters – Buy Website Traffic That Converts

Sponsored link:
Kestrel

Sponsored link:
Tasigna lawsuit lawyer

Sponsored link:
Top Spotting Scope Brands

Sponsored link:
Savant Magazine

Support SpaceWeather.com

SleePare.com, best Matresses Reviews, Casper, Purple & more. 166 Bowery, New York, NY 10012

Tired of expired coupon codes? Try Dealspotr,
the web's most accurate coupon site

Sponsored link:
Roseville SEO

Sponsored link
Insignia SEO Company - Marketing that Works!

Sponsored link:
DVLA Information

Sponsored link:
UK airport taxi transfer - premier taxi transfers

Sponsored link:
Ignition Poker - poker games online

If you like online casinos, check out https://www.newslotsite.org.uk/ for the latest brands

Support SpaceWeather.com
space weather alerts


       
©2017 Spaceweather.com. All rights reserved. This site is penned daily by Dr. Tony Phillips.

Support SpaceWeather.com


space weather alerts

 


Quality wall art and wall stickers from Otomo


Business Web Directory


Best in Australia


Lera Blog


The Best Web Hosting Companies of 2017



Support SpaceWeather.com



Support SpaceWeather.com