SUNSPOT CAN'T SHOOT STRAIGHT: Over the weekend, giant sunspot complex AR3638-47 hurled at least 6 CMEs into space--all of them heading just south of Earth. NASA models forecast near-miss after near-miss. Finally, however, an explosion occured that may be Earth directed:
This M3.4-class solar flare from AR3638 during the late hours of April 21st (2152 UT) may have produced a partial-halo #CME with an Earth-directed component.
https://spaceweather.com/
Über BAM, den Bundesfortbildungskongress Allgemeinmedizin 🎙️#Fortbildung #CME #Allgemeinmedizin #Hausärzte #Berlin #ÄrzteTag #Medizin #Kultur
ÄrzteTag: Wie Hausärzte Fortbildung jetzt »feiern«
An overdue #CME struck #Earth's #magnetic #field on March 3rd. The impact sparked a #G2-class #geomagnetic #storm and bright #auroras around the Arctic Circle. Jan Eklind photographed the display from the window seat of an Airbus A20N at 35,000 feet:
"I was flying from Oslo to Kirkenes on Scandinavian Airlines when the CME struck," says Eklind. "Auroras spread across the sky with twilight in the distance and city lights below."
The CME was hurled into space on Feb. 28th when a magnetic filament connected to sunspot AR3592 erupted. It was not aimed directly at Earth, and forecasters were unsure if it would deliver even a glancing blow; however, the impact was stronger than expected.
https://spaceweather.com/
sorry for the delay in posting this... distractions
Welcome To Solar Cycle 25; Our Sun Enters A New 11-Year Period | Hackaday
to know what we’re in store for over the next couple of decades. Welcome to your primer on Solar Cycle 25.
#astronomy #science
#coronalmassejections #cme #magneticpole #solarcycle #solarcycle25 #sunspots #spaceweather ">TAGS
"This was quite the event, and extremely challenging to image," says Schur. Indeed, Vega is 4000 times brighter than the comet. Schur captured both in the same exposure as the pair sank into the treetops overlooking his backyard observatory.
12P/Pons-Brooks is the most active and arguably the most interesting comet in the entire solar system. Ice volcanoes on the comet's surface have erupted at least 5 times on 2023, creating "horns," dark shadows, and multiple shells of expanding debris. All of these features are visible in Schur's photo.
' #SIGMOID' #ERUPTION ON THE SUN: When you see an "S" on the #sun, it usually means something is about to explode. NASA's Solar Dynamics Observatory recorded this classic example of a "sigmoid eruption" on Dec. 6th:
In the movie, an S-shaped magnetic filament erupts, creating a 'splash' of debris more than 100,000 km wide. Researchers have long known that sigmoid structures in the sun's atmosphere herald strong explosions. The magnetic field lines that comprise them are twisted like a slinky; when enough tension builds up, they un-twist explosively.
Usually, sigmoid explosions produce CMEs. This one might have hurled a faint CME toward Earth. We're not sure because multiple CMEs were leaving the sun at the time of the blast, and there was much confusion. Don't be surprised if a sigmoid #CME delivers a weak but direct blow to #Earth's magnetic field on Dec. 9th.
A HOLE IN THE SUN'S ATMOSPHERE: A huge hole has opened in the sun's atmosphere, and it is directly facing Earth. Solar wind flowing from the hole will reach our planet on Dec. 4th or 5th. Its arrival should spark G1-class geomagnetic storms. #Aurora alerts: SMS Text
STRONG GEOMAGNETIC STORM: A Cannibal #CME struck Earth's magnetic field on Dec. 1st, sparking a strong G3-class #geomagnetic #storm with auroras in both hemispheres. "We witnessed an incredible show on the #Canterbury #coastline overlooking the Pacific Ocean," reports Mike White from #NewZealand. "The sound of waves crashing onto the beach and washing across the stony pebbles created the perfect soundtrack for these Southern Lights."
"The Cannibal CME arrived just as New Zealand skies were darkening. The resulting cloud of charged particles rained down Earth's magnetic field lines and delivered a light show that lasted for hours. It was easily visible to the naked eye."
#Auroras were observed as well -- "and they were INSANE," says Janne Maj Nagelsen, who watched the display from Stamnes, Vaksdal, #Norway:
"I have never seen such strong auroras," says Nagelsen. "Not to mention the colors. I mean look at the picture! They were totally, literally insane."
Auroras are caused by charged particles raining from space down upon Earth's atmosphere. Unlike SAR arcs, which are pure red, auroras can have a rich and stunning variety of colors. Both phenomena may be photographed on Dec. 1, 2023, when a #Cannibal #CME is #expected to hit #Earth.
#CME IMPACT SPARKS EUROPEAN #AURORAS: A CME struck Earth's magnetic field on Nov. 25th, sparking 15 hours of geomagnetic storms. At the apex of the G2-category event, auroras were observed across most of Europe, visible to the naked eye despite nearly full moonlight. Graeme Whipps, who sends this picture from Aboyne, Aberdeenshire, #Scotland (+57N):
Note that Whipps' photo includes a vertical band of rare orange auroras. "What an incredible sight!" Whipps says.
Usually, when auroras visit Europe, they stop in places like Scotland, going no farther south. On Nov. 25th, however, the lights descended all the way to Italy
INCREASE IN #SOLAR ACTIVITY: Over the past week, sunspot numbers have increased almost 10-fold with dozens of dark cores now present on the solar disk. It is no surprise that solar activity has sharply increased as well. Just today multiple overlapping CMEs have billowed away from the sun:
Analysts will have to spend some time unraveling these clouds to determine their trajectories. However, a NASA model already suggests one may be heading for Earth. The first, bright southerly #CME shown in the movie above could hit our planet's magnetic field during the late hours of Nov. 25th
GEOMAGNETIC STORM WATCH (G1): A magnetic filament on the #sun erupted yesterday, Nov. 16th, hurling a #CME almost directly toward #Earth:
NOAA forecasters say that G1-class geomagnetic storms are possible when the CME arrives on Nov. 19th. During such storms, naked-eye #auroras typically fill the Arctic Circle.
#CME headed toward #Earth and arriving this weekend)
Source: https://youtube.com/watch?v=qiHa_TVzzbo
CME Impact Expected This Weekend
POSSIBLE EARTH-DIRECTED ERUPTION: A solar magnetic filament erupted on Halloween night, carving a "canyon of fire" in the sun's southern hemisphere. NASA's #Solar Dynamics Observatory recorded the debris as it slingshot into space:
A boomerang presentation of the Halloween eruption.
The walls of the canyon are at least 10,000 km high and 10 times as long. Fragments of the magnetic filament may soon emerge from the blast site in the form of a #CME. Fresh data from SOHO coronagraphs will soon reveal if it has an Earth-dorected component.
DRAMATIC #M-CLASS EXPLOSION: A magnetic filament just beyond the sun's northeastern limb exploded on Oct. 26th (2324 UT), causing a chain reaction of magnetic eruptions that spilled onto the Earthside of the sun. NASA's SDO recorded the M1.4 category blast:
Coronagraphs onboard the Solar and Heliospheric Observatory (SOHO) have since detected a fast-moving #CME emerging from the blast site. Type II radio emissions from the leading edge of the CME suggest it is moving 1558 km/s (3.5 million mph). There is a hint of an Earth-directed component. It is too soon to know for sure, however; confirmation awaits additional data from SOHO.
NEW SOURCE OF FLARES: Suddenly, AR3445 is crackling with activity. The mixed-polarity sunspot has produced multiple #M-class #flares this weekend, including this M4-category explosion on Sept.24th (0328 UT):
A flash of extreme #ultraviolet #radiation from the #flare ionized the top of Earth's atmosphere, causing a shortwave radio blackout over #Australia: map. Mariners and ham radio operators may have noticed loss of signal at frequencies below 25 MHz for as much as 30 minutes after the flare.
This flare might have lasted long enough to lift a #CME out of the sun's atmosphere.
https://spaceweather.com/
#aurora
NIGHT AFTER THE STORM: When a #CME hit #Earth on Sept. 18th, sparking a strong geomagnetic storm, it was just the beginning. Our planet's magnetosphere reverberated for more than two days after the impact. That's why this happened:
"The night after the big storm I was flying back to Europe," says photographer Ruslan Merzlyakov. "While over Greenland's ice sheet these amazing auroras appeared--even blue Northern Lights were there!"
The storm has truly subsided now, but auroras will soon return. Two more CMEs are en route for a new round of storming on Sept. 23rd and 24th
#CME SPARKS STRONG #GEOMAGNETIC #STORM: Earth's magnetic field is still reverberating from a fast-moving CME strike on Sept. 18th. The CME's arrival (a day earlier than expected) sparked a strong G3-class geomagnetic storm with auroras stretching from France to the West Coast of the USA.
Jeroen Daniels photographed the display from Edmonton, Alberta:
"As soon as the sun set I could see auroras dancing in the twilight sky," says Daniels. "The colours were unlike any that I have seen before--greens mixed with blues mixed with reds, orange, pink. It was amazing!"
At the apex of the storm, red atomic-oxygen auroras spread into the United States as far south as Colorado (+40.4N), Missouri (+40.1N), and Nebraska (+41.9N). It was a true mid-latitude event.
Not all the lights in the sky were auroras. Many observers also spotted STEVE--a glowing ribbon of purple light caused by currents of hot plasma flowing through Earth's magnetosphere. Michele Sadauskas photographed the phenomenon from Glidden, Wisconsin:
"When I stepped out of the truck, STEVE appeared vividly across the sky," says Sadauskas. "I quickly set up my pano rig and was pretty happy with the capture. This is the first time I've caught STEVE crossing all the way from east to west!"
Other notable sightings of STEVE were made in Montana, Michigan, Nebraska, South Dakota and Wyoming.
