Scroll down to read this post.

 

Please consider supporting my work here at Behind The Black by giving either a one-time contribution or a regular subscription, in any one of the following ways:

 

1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get.

 

2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation.
 

3. A Paypal Donation:

4. A Paypal subscription:


5. Donate by check, payable to Robert Zimmerman and mailed to
 
Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652


Sunspot update May 2019: The long ramp down

NOAA yesterday released its May update for the Sun’s sunspot cycle. The graph is posted below, annotated by me to give it some context.

The Sun in May continued to show the exact same amount of activity as it had shown for March and April. This steady uptick in sunspot activity once again shows that the ramp down to full solar minimum will be long and extended.

May 2019 sunspot activity

The graph above has been modified to show the predictions of the solar science community for the previous solar maximum. The green curves show the community’s two original predictions from April 2007, with half the scientists predicting a very strong maximum and half predicting a weak one. The red curve is their revised May 2009 prediction, extended in November 2018 four years into the future.

That we are definitely ramping downward to minimum, even with the slight increase in the past three months, is shown by the fact that the Sun has shown no sunspots for the past fifteen days. In fact, all the activity shown in May comes from the first half of the month. This pattern is actually a reflection of the Sun’s 27-day rotation period. As I noted in my February 2017 update,

January’s activity however illustrated a statistical phenomenon that is typical of the sunspot count. That count is determined not by the numbers of sunspots on the entire surface of the Sun, but on the sunspots visible on the side of the Sun facing the Earth. Since it is not unusual for one face to be more active than the other, as we transition from maximum to minimum the sunspot counts will often show a more pronounced up-and-down curve reflecting this fact. Since the Sun’s day equals about 27 Earth days, this means that about every two weeks the active side will dominate our view until it rotates away and the inactive side reveals itself for two weeks.

In 2017 the number of spots were greater, so the period of inactivity was generally less. Now, it is not unusual for the Sun to be blank for weeks at a time. When it does become active, it is also not unusual for that activity to be confined to one hemisphere, so we get two weeks or less of activity, followed by two weeks or more of blankness.

So far there have been no sunspots in June. Expect that to continue for at least another week, when the more active hemisphere of the Sun returns to face us. I would not be surprise however if that other hemisphere arrives with its sunspots gone, so that the present streak of blankness continues unabated.

Meanwhile, solar scientists struggle to figure out what is going to happen next. Unlike climate scientists, who know as little about the climate, the solar science community admits to its ignorance about the Sun, and the uncertainty of its solar models.

Share

Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. The ebook can also be purchased direct from my ebook publisher, ebookit, in which case you don't support the big tech companies and I get a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from me (hardback $24.95; paperback $14.95; Shipping cost for either: $5.00). Just email me at zimmerman @ nasw dot org.

6 comments

  • Max

    Space weather (on May,30th.) noted that a brief cycle 25 reversal occurred for a few hours. It barely registered so it may have been a fluke.
    http://spaceweather.com/archive.php?view=1&day=29&month=05&year=2019

    Jupiter has got problems.
    https://spaceweatherarchive.com/2019/05/20/is-the-great-red-spot-unraveling/

  • Alex

    Mr. Z.,
    Your postings regarding the “Solar Weather” over the past, intrigued me greatly.
    So much so that I began researching and reading, learning.
    I now subscribe to the “Space Weather Woman” site, as well as ‘other down to earth’ sites.
    Truly amazing stuff this solar weather.
    Thank you for your work, and perspective into the many mysteries of Creation.

    Alex

  • Andi

    Has anyone considered placing two probes in Earth’s orbit around the Sun, leading and lagging us by 120 degrees, so that the entire Sun can be observed?

  • Andi: This has already been done. Stereo-A and Stereo-B were launched in 2006. See: https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2006-047A

    Stereo-B failed in 2014, but Stereo-A still functions.

    For consistency with more than almost three hundred years of sunspot data, solar scientists continue to base their sunspot count on the visible face of the Sun.

  • wodun

    Jupiter has got problems.

    Maybe they are ready to reveal themselves.

  • Max

    Wodun, just a dude;
    Jupiters great eye is closing, if anything they’re hiding themselves.
    The red spot was once greater than three earths across and now it’s as small as one earth.
    I never did find out if the storm was/is the other magnetic South Pole.
    https://behindtheblack.com/?s=Jupiter+magnetic+pole+

    I made a mistake in another thread on the 11 year planetary alignment causing the solar cycle. (I shouldn’t post after several 13 hour graveyard shifts, I keep making mistakes)
    Jupiter is in retrograde from April to August with our closest approach in June. Watching it in the sky, moving towards Scorpius I mistakenly said it already passed over Sagittarius. (All planets move around the sun in the same direction, towards the east. A amateurs mistake)
    The 11.6 year Jupiter cycle passing in front of Sagittarius, the center of our galaxy, is happening “now” until next year. Is it Just a coincidence with the low in the sunspot cycle?
    ( I’m too lazy to look up past sunspot history)

    I just read something on a NASA website that makes me feel better about being an amateur. A statement that the magnetic poles flip during solar maximum.
    (The statement that the suns magnetic field comes from electrical currents fascinates me)

    https://sdo.gsfc.nasa.gov/mission/science.php
    ” It is widely believed that the Sun’s magnetic field is generated by electrical currents acting as a magnetic dynamo inside the Sun. These electrical currents are generated by the flow of hot, ionized gases in the Sun’s convection zone.
    We know a lot about the Sun’s magnetic dynamo. It has a 22 year cycle. During the first half of the cycle, the Sun’s magnetic north pole is in the northern hemisphere while the magnetic south pole is in the southern hemisphere. Right around the peak of the sunspot cycle (solar maximum), the magnetic poles flip or exchange places so that magnetic north is now located in the southern hemisphere. This flip occurs about every 11 years at solar maximum.
    The 22 year magnetic cycle greatly influences the most prominent manifestation of the dynamo, sunspots and active regions, which migrate towards the solar equator from high latitudes over the course of the solar 11 year “sunspot cycle”…

Readers: the rules for commenting!

 

No registration is required. I welcome all opinions, even those that strongly criticize my commentary.

 

However, name-calling and obscenities will not be tolerated. First time offenders who are new to the site will be warned. Second time offenders or first time offenders who have been here awhile will be suspended for a week. After that, I will ban you. Period.

 

Note also that first time commenters as well as any comment with more than one link will be placed in moderation for my approval. Be patient, I will get to it.

Leave a Reply

Your email address will not be published.