The Sun has changed its character

Guest post by David Archibald A number of solar parameters are weak, and none is weaker than the Ap Index: Figure 1: Ap Index 1932 to 2026 Figure 1 shows…

A quiet cue ball sun

Source: http://sdo.gsfc.nasa.gov/assets/img/latest/latest_4096_4500.jpg A couple of people have noticed (as did I) that the sun is essentially blank.

NASA June 2012 Solar Cycle 24 Prediction

Compiled by Joe D’aleo WeatherBell via NASA MSFC The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum of about 60 in the Spring of 2013. We…

NASA/Hathaway's updated solar cycle prediction – smallest in 100 years

…the predicted size makes this the smallest sunspot cycle in about 100 years (Updated 2012/05/01) From: http://solarscience.msfc.nasa.gov/predict.shtml The current prediction for Sunspot Cycle 24 gives a smoothed sunspot number maximum…

New paper in the Journal of Atmospheric and Solar-Terrestrial Physics demonstrates that planets do not cause solar cycles

Planetary effects are too small by several orders of magnitude to be a main cause of the solar cycle. Argiris Diamantis writes in with this tip: Professor Cornelis de Jager…

Solar Update March 2012

by David Archibald Figure 1: Heliospheric Current Sheet Tilt Angle 1976 – 2012 The heliospheric current sheet tilt angle is currently at 67°. Solar maximum occurs when it reaches 74°…

The sun is still in a funk: sunspot numbers are dropping when they should be rising

The sunspot number for February from SIDC is down again, to 33.1 Here’s the source of that data: http://sidc.oma.be/DATA/monthssn.dat So far, cycle 24 is significantly lower in SSN number that…

Do Latest Solar Studies Confirm Upcoming Global Cooling?

Guest post by Matti Vooro I fully support the findings of  Jan –Erik Solheim , Kjell Stordahl and Ole Humlum and their very recent paper called The long sunspot cycle…

Quantifying the Solar Cycle 24 Temperature Decline

Guest post by David Archibald Three wise Norwegians – Jan-Erik Solheim, Kjell Stordahl and Ole Humlum – have just published a paper entitled “The long sunspot cycle 23 predicts a…

Headlines over solar cycle 25 and potential global cooling

There’s a story about solar cycle 25, and a potential “mini ice age” in the UK Daily Mail by David Rose that is making headlines today, even hitting the Drudge…

First Estimate of Solar Cycle 25 Amplitude – may be the smallest in over 300 years

Guest post by David Archibald Predicting the amplitude of Solar Cycle 24 was a big business. Jan Janssens provides the most complete table of Solar Cycle 24 predictions at: http://users.telenet.be/j.janssens/SC24.html…

Solar-Terrestrial Power Update

By Paul L. Vaughan, M.Sc. The amplitude of Earth’s zonal winds is modulated by the solar cycle. Here’s a concise visual update based on the latest data: LOD’ = rate…

Hathaway's November Solar Prediction

By David Archibald Joe D’Aleo asked for my comments on NASA’s James Hathaway’s latest solar prediction, available here: http://solarscience.msfc.nasa.gov/predict.shtml When I read May 2013 for solar cycle maximum, I thought…

BREAKING – major AAS solar announcement: Sun's Fading Spots Signal Big Drop in Solar Activity

“If we are right, this could be the last solar maximum we’ll see for a few decades,” Hill said. “That would affect everything from space exploration to Earth’s climate.” Update:…

American Astronomical Society to make 'major' solar announcement

From Space.com Astronomers will unveil a “major result” on Tuesday (June 14) regarding the sun’s 11-year sunspot cycle. The announcement will be made at a solar physics conference in New…

Latest solar cycle update from the Space Weather Prediction Center

SWPC updated their solar cycle progression page…looks like the levels have held since the big uptick in March.

Solar Max – So Soon?

Guest post by David Archibald Dr Svalgaard has an interesting annotation on his chart of solar parameters – “Welcome to solar max”: Graphic source:  http://www.leif.org/research/TSI-SORCE-2008-now.png Could it be?  It seems…

Watched solar CME's never boil?

I covered the recent uptick in solar activity earlier this month here and here last month. Now NASA offers this summary of the events, saying Cycle 24 is finally “on”.…

The smallest sunspot cycle in two hundred years

I missed this earlier this week from NASA, I got a bit distracted with other things. Sixty two – that’s the new number from Hathaway on April 4th, have a…

Update on solar cycle 24

NOAA’s Space Weather Prediction Center posted an update to their graphs today. They show the largest gains in solar cycle 24 tracking metrics I’ve seen yet. See graphs below:

Missing sunspots solved by NASA?

News from NASA that they believe they have solved the mystery of the missing sunspots and why the solar minimum was so prolonged: Researchers Crack the Mystery of the Missing…

NASA's Hathaway revises the sunspot prediction down again

From the Marshall Space Flight Center, Dr. Hathaway’s page: Current prediction for the next sunspot cycle maximum gives a smoothed sunspot number maximum of about 58 in July of 2013.…

Normal Seasons of the Sun (GW Tiger)

Guest post by Ira Glickstein PhD. We had joy, we had fun, we had Seasons of the Sun. But the mountains we climbed were but whimsies of our minds. That…

NASA Sun Spot Number predictions revised again

UPDATE: see my animation of NASA solar forecasts since 2004 below. WUWT Commenter J Gary Fox writes: The solar cycle 24 predicted sunspot maximum has been reduced again – predicted…

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