[Home]  [Headlines]  [Latest Articles]  [Latest Comments]  [Post]  [Sign-in]  [Mail]  [Setup]  [Help] 

Status: Not Logged In; Sign In

Have You Noticed That Seismic Activity Has Been Going Nuts All Over The Globe

The Vax was meant to CAUSE cancer.... listen to this - this clip from RFK Jr's site

CNN Immediately Cuts Off Panelist Who Tells the Truth About the LA Riots

Army Secretary declares war on the military industrial complex

Former Israeli PM Threatens U.S. Will Get 'A Re-Run Of 9-11' If It Doesn't Fight Israel's Wars

7 Examples Of The “Mostly Peaceful” Los Angeles Riots Becoming Even More “Peaceful”

Biden Admin and ActBlue Funded Group Behind Abolish ICE Protests in LA

Murderers, rapists, gang members: ICE busts 12 of LA's 'worst' illegal alien criminals amid riots

LA Mayor Karen Bass Threatens Feds: Withdraw From LA Or the Violence Will Escalate –

Woman points gun at police and finds out

EXCLUSIVE: Rep. Ronny Jackson Accuses Biden Doctor Kevin O’Connor Of Sexual Misconduct

WHAT YOU’RE WITNESSING IN LOS ANGELES ISN’T JUST UNREST—IT’S MORAL COLLAPSE

Anna Paulina Luna Exposes the Guy Behind the Anti-ICE Riots

Mike Huckabee Working To Keep Netanyahu in Power

Israeli Military and Israeli-Backed Gang Shoot Aid Seekers in Gaza, Killing 14

Only 68 Building Permits Issued for Pacific Palisades After Wildfires Destroyed 6800 Structures

Violent Rioters Fire Off Exploding Projectiles at Police Horses Use Fireworks and Explosives to Attack Police

ICE Just Shattered Records With One Massive Operation That Has Democrats Fuming

Nolte: Insurrectionist Democrats Plan Another Summer of Blue City-Riots

Violent riots have now been reported in over 30 American cities. Heres a full list:

Mass shooter opened fire at graduation party was an migrant who was busted in LA ICE raids:

Cash Jordan: ICE Raids Home Depot... as California Collapses

Silver Is Finally Soaring: Here's Why

New 4um Interface Coming Soon

Attack of the Dead-2025.

Canada strips Jewish National Fund of charitable status

Minnesota State Rep. Vang just admitted that she is an ILLEGAL ALIEN.

1100% increase in neurological events since the roll-out of Covid mRNA

16 Things That Everyone Needs To Know About Violent Far-Left Revolution In Los Angeles

Undercover video in Arizona alleges ongoing consumer fraud by Fairlife


Science/Tech
See other Science/Tech Articles

Title: Where have all the sunspots gone? Solar minimum has arrived.
Source: [None]
URL Source: https://www.nasa.gov/vision/univers ... system/06mar_solarminimum.html
Published: Mar 6, 2006
Author: staff
Post Date: 2018-07-15 11:33:03 by BTP Holdings
Keywords: None
Views: 178
Comments: 2

Solar Minimum has Arrived 03.06.06

Where have all the sunspots gone? Solar minimum has arrived.

Every year in February, the students of Mrs. Phillips's 5th grade class in Bishop, California, celebrate Galileo's birthday (Feb. 15th) by repeating one of his discoveries. They prove that the sun spins.

It's simple. Step 1: Look at the sun. Galileo did this using a primitive telescope; Mrs. Phillips's students use the internet. Step 2: Sketch the sunspots. Step 3: Repeat daily. After only a few days, it's obvious that the sunspots are moving and sun is spinning, performing one complete turn every 27 days.

This procedure worked fine in 1610. But in 2006, "we had a problem," says young Jonathan Garcia. "No sunspots," explains his science fair partner Dakota Winkler.

Right: A picture of the sun taken Feb. 10, 2006, by the Solar and Heliospheric Observatory (SOHO). [Larger image]

For almost the entire month of February 2006 the sun was utterly blank. If Galileo had looked at the sun on his 442nd birthday, he would have been disappointed--no sunspots, no spin, no discovery.

What's going on? NASA solar physicist David Hathaway explains: "Solar minimum has arrived."

Sunspots come and go with an 11-year rhythm called the sunspot cycle. At the cycle's peak, solar maximum, the sun is continually peppered with spots, some as big as the planet Jupiter. But for every peak there is a valley, and during solar minimum months can go by without a single sunspot.

"That's where we are now--at minimum," says Hathaway.

Actually, we're at the beginning of the minimum. February 2006 was the first month in almost ten years with mostly no sunspots. For 21 of February's 28 days, the sun was blank. Hathaway expects this situation to continue for the rest of 2006.

Below: Sunspot counts from the time of Galileo through the end of 2005. In recent centuries, counts have gone up and down with an 11-year period. [More]

No sunspots means low solar activity. Sunspots are sources of solar flares and coronal mass ejections that can disrupt radio communications and even cause power outages on Earth during severe magnetic storms. These problems should subside during the year ahead. Auroras, a beautiful side-effect of magnetic storms, should subside, too. "Too bad," says Hathaway, who enjoys Northern Lights.

Galileo was lucky. The year 1610 was close to a maximum of the sunspot cycle, so when he projected an image of the sun through his spyglass, he immediately saw enormous spots. The spots themselves did not surprise him. Chinese astronomers looking at the sun naked-eye through clouds and mist had reported seeing sunspots as early as 28 BC. The reality of sunspots was uncontroversial, but the nature of sunspots was a mystery. Were they satellites of the sun? Dark clouds in the sun's atmosphere? Or something else? Galileo's daily sketches showed plainly that the sun was spinning and that sunspots were close to the surface of the spinning orb. Personally, Galileo thought sunspots might be clouds.

Right: A sketch of the sun made by Galileo in June 1613. [More]

Now we know what they really are: great islands of magnetism. Sunspots appear when magnetic force-fields generated by the sun's inner dynamo poke through the surface. These fields block the flow of heat from below, cooling the sun in their vicinity. If you stuck a thermometer in a sunspot, it would register "only" a few thousand degrees Celsius. This makes it look dark compared to the surrounding inferno.

Sunspots are in a state of non-stop upheaval. Tangled lines of magnetism twist and stretch until the tension becomes too great and an explosion occurs--a flare. This link between flares and spots is why solar minimum is so quiet. "But not absolutely quiet," adds Hathaway. "During solar minimum we can have occasional sunspots and solar flares." Indeed there was at least one monster spot and one X-class solar flare (the most powerful kind) during each of the last three minima in 1976, 1986 and 1996.

2006 will probably be the same--long stretches of quiet with occasional episodes of spots and flares. How long will this last? Stay tuned for the answer in our next story: Solar Storm Warning.


Poster Comment:

More links at source.

Post Comment   Private Reply   Ignore Thread  


TopPage UpFull ThreadPage DownBottom/Latest

#1. To: BTP Holdings (#0)

Sunspots have been replaced by coronal holes.

Obnoxicated  posted on  2018-07-15   14:58:34 ET  Reply   Trace   Private Reply  


#2. To: Obnoxicated (#1)

Sunspots have been replaced by coronal holes.

en.wikipedia.org/wiki/Coronal_h ole

en.wikipedia.org/wiki/Sunspot

www.davidda rling.info/encyclopedia/C/coronal_hole.html

Sunspots are related to lower activity of convection in the sun's photosphere due to an increased magnetic activity. Coronal holes are areas in the sun's corona which are colder and has lower density. Coronal holes are related to solar wind, and there is some correlation between coronal holes and sun spots, but they are not the same phenomena.

Reference www.physicsforums.com/threads/coronal-holes-and- sunspots.294282/

"When bad men combine, the good must associate; else they will fall, one by one." Edmund Burke

BTP Holdings  posted on  2018-07-15   15:08:11 ET  Reply   Trace   Private Reply  


TopPage UpFull ThreadPage DownBottom/Latest


[Home]  [Headlines]  [Latest Articles]  [Latest Comments]  [Post]  [Sign-in]  [Mail]  [Setup]  [Help]