Sol (Sun) and its phenomena

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 02_2023

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M1 event observed at 03:51 UTC on September 01 from Region 3413 (N10W74).

X-ray Solar Flare: M1.2 at 03:52 UTC.from AR3413 it caused a Minor R1 radio blackout over Southeast Asia

The M flare (see earlier tweets) also produced a proton event here at Earth. Within an hour of the onset of the flare the Earth was bathed in a stream of near relativistic protons accelerated by the flare. pic.twitter.com/q8IB1keW8G

— Keith Strong (@drkstrong) September 1, 2023

There are currently 5 numbered sunspot regions on the disk. disk: AR3413, AR3415, AR3416, AR3417, AR3418

Total number of sunspots has increased to 83 (25 of these are grouped into 5 active regions) NOAA forecasts for the next 24h: 85% chance for C flares, 25% chance for M flares and 5% chance for X flares.All regions have stable magnetic fields.

● Auroral Activity

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. On September 01 solar wind speed reached a peak of 569 km/s at 20:24 UTC. Total IMF reached 11 nT at 21:54 UTC

APPROACHING GEOMAGNETIC STORM: As a result of the M flare, the Earrth is likely to experience a geomagnetic storm on 3rd September according to the NOAA models. It does not look like it will be a major one though. pic.twitter.com/F43TrzSVqZ

— Keith Strong (@drkstrong) September 2, 2023

WEEKEND GEOMAGNETIC STORM WATCH: A geomagnetic storm watch is in effect for Sept. 3rd when one and perhaps two CMEs (described below) hit Earth's magnetic field. Neither impact will be major, but added together they could spark G1 to G2-class geomagnetic storms. Depending on the timing of the impacts and other factors, auroras could appear in northern-tier US states such as New York, Minnesota, and Washington.
SpaceWeather.com​

TWO CORONAL MASS EJECTIONS EN ROUTE: One CME is definitely heading for Earth, and there might be two. The first CME left the sun on Aug. 30th following a "canyon of fire" magnetic filament eruption. Although the CME is faint, there is no question it is heading our way. The second CME is less certain to hit Earth, but more potent:​

​

SOHO coronagraphs watched this bright fast CME leaving the sun on Sept. 1st following a long-duration M1-class solar flare from sunspot AR3413. Although it is not heading directly for Earth, the CME's flank is likely to graze our planet, according to a NASA model.​

The one-two punch of these two CMEs arriving consecutively on Sept. 2nd and 3rd could spark geomagnetic storms as strong as category G2 SpaceWeather.com​

Aurora Oval Bz: -5.63 nT South

Aurora in Granisle BC, 20230901T0700-0830Z
The almost past full Moon washed out the purple pillars but couldn't hold down the greens a lovely surprise aurora. A cinnamon bun formed on the Eastern part of the aurora. #aurora @auroraborealis @TamithaSkov @Vincent_Ledvina @SNHWx pic.twitter.com/YAdiw0Et8e

— Harlan Thomas (@theauroraguy) September 1, 2023

Last night around 1 am, the aurora shimmered in the northern sky as a substorm unfolded. The aurora eventually made its way overhead and a bit to the south, filling the sky. It was a brief dance, but I was lucky enough to be outside when it happened to capture the moment. pic.twitter.com/f1Ie7cgCNq

— Vincent Ledvina (@Vincent_Ledvina) August 31, 2023

● Current Conditions at 04:00 UTC on September 02

▪︎ Geospace unsettled (kp 3)
▪︎ Solar wind speed record: 548 km/sec (Moderately high speed)
▪︎ density: 0 18 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 6.34 nT
▪︎ Neutron Counts today: - 3.5 % (Low)
▪︎ X-ray Solar Flare: C7 at 22:24
▪︎ Sunspot number: 83 (SN 77 September 01)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 03_2023

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M3 event observed at 07:12 UTC on September 02 from Region 3413 (N10W88). It caused a Minor R1 radio blackout over India


There are currently 6 numbered sunspot regions on the disk. disk: AR3413, AR3415, AR3416, AR3417, AR3418 and new region AR3419

Total number of sunspots has decreased to 77 (28 of these are grouped into 6 active regions) NOAA forecasts for the next 24h: 95% chance for C flares, 25% chance for M flares and 5% chance for X flares.All regions have stable magnetic fields.

● Auroral Activity

The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. On September 02 Active geomagnetic conditions (Kp4) threshold Reached at 04:00 UTC. Minor G1 geomagnetic storm (Kp5) threshold reached at 08:10 UTC. Solar wind speed reached a peak of 578 km/s (Moderately high speed) at 15:36 UTC. Total IMF reached 9 nT at 04:07 UTC

WEEKEND GEOMAGNETIC STORM WATCH: A minor G1-class geomagnetic storm is underway on Sept. 2nd as Earth moves through a high-speed stream of solar wind. This storm is unrelated to two CMEs approaching Earth--one that left the sun on Aug. 30th, and another launched on Sept. 1st. The arrival of those CMEs on Sept. 3rd could extend the current storm and possibly enhance it to category G2. SpaceWeather.com

Aurora Oval Bz: 3.81 nT North


● Current Conditions at 04:00 UTC on September 03

▪︎ Moderate G2 geomagnetic storm (Kp6) threshold reached 02:59 UTC
▪︎ Solar wind speed record: 504 km/sec (Moderately high speed)
▪︎ density: 25.55 p/cm³ (Moderate density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 6.43 nT
▪︎ Neutron Counts today: - 3.5 % (Low)
▪︎ X-ray Solar Flare: M1 at 00:23 from AR3413 it caused a Minor R1 radio blackout over South Pacific Ocean

YET ANOTHER M FLARE! This one was an M1 event from AR3413 on the NW limb. Only data available at the moment is from the NOAA GOES SUVI instrument. This is the 131A channel. pic.twitter.com/I5IB1KTkz0

— Keith Strong (@drkstrong) September 3, 2023

▪︎ Sunspot number: 77 (SN 83 September 02)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com

 

[Olivierlejardinier]

Two M class flares today, M1 and later M5 (according to Spaceweather.com)

RADIO BLACKOUT: The M6 flare produced a moderate level (R2) radio interference event for Africa, the Middle East, and India affecting low frequency (<5MHz) radio communications. Space Weather in action! pic.twitter.com/xN4YPZxBCe

— Keith Strong (@drkstrong) September 3, 2023

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 04_2023

Solar activity has been at high levels for the past 24 hours. The largest solar event of the period was a M6 event observed at 08:36 UTC on September 03 from Region 3413 (N10W0). It caused a Moderate R2 radio blackout over Saudi Arabia

CME WATCH - 2023.09.03: CMEs on repeat! Just watch the west limb (right) of the Sun. There are multiple CME's launched from there but note how different they are, primarily in speed but also in size. pic.twitter.com/s0fILjS7Ml

— Keith Strong (@drkstrong) September 4, 2023

There are currently 6 numbered sunspot regions on the disk. disk: AR3415, AR3417, AR3418, AR3419 and new regions AR3420 and AR3421

AR3413 and AR3416 are gone

Total number of sunspots has increased to 79 (19 of these are grouped into 6 active regions) NOAA forecasts for the next 24h: 75% chance for C flares, 5% chance for M flares and 1% chance for X flares.All regions have stable magnetic fields.

● Auroral Activity

The geomagnetic field has been at unsettled to major storm levels for the past 24 hours. On September 03 Minor G1 geomagnetic storm (Kp5) threshold reached at 08:59 UTC. Solar wind speed reached a peak of 567 km/s (Moderately high speed) at 21:04 UTC. Total IMF reached 9 nT at 21:34 UTC

AS PREDICTED, A GEOMAGNETIC STORM: We predicted a G2-class geomagnetic storm this weekend, and it happened. The question is, why? At least one CME was supposed to hit Earth's magnetic field on Sept. 2nd. Yet solar wind data show no clear signs of a CME impact. Whatever the reason for the storm, it sparked mid-latitude auroras in the USA.
"Last night was absolutely epic!!" says Ethan Hohnke, who send this picture from Sleeping Bear Dunes National Lakeshore near Empire, Michigan:​

​

"Northern lights could be seen dancing over the waters of Lake Michigan before the bright Moon rose," says Hohnke. "I was standing near the 45th parallel when I took this picture."

The lights spread even farther south than that. Photographers captured the red glow of atomic-oxygen auroras in Colorado (+38.9N) and Missouri (+38.6N). In these southernmost photographs, auroras were not visible to the naked eye, but easily recorded by cameras and cell phones with nighttime exposure settings.

Back to the origin of the storm: It is possible that a CME arrived on Sept. 2nd, but its weak impact was masked by an unsettled stream of solar wind already blowing around Earth. At this time of year, even weak CMEs do a good job sparking auroras--a result of the Russell-McPherron effect which boosts geomagnetic activity around the equinoxes. SpaceWeather.com​

Aurora Oval Bz: 0.64 nT North


● Current Conditions at 04:20 UTC on September 04

▪︎ Geospace unsettled (kp 3)
▪︎ Solar wind speed record: 409 km/sec (Elevated speed)
▪︎ density: 6 p/cm³ (Moderate density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 4.22 nT
▪︎ Neutron Counts today: - 3.5 % (Low)
▪︎ X-ray Solar Flare: C1 at 04:02
▪︎ Sunspot number: 79 (SN 77 September 03)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com

 

[Olivierlejardinier]

The following video make a good synthesis of what we're witnessing here day by day :

"SOLAR CYCLE 25 IS STILL HEADING TOWARDS SOLAR MAXIMUM EVEN THOUGH THIS LAST MONTH WAS QUIETER THAN JULY."

From the comments section:

".../...
We will need to wait another 3-4 years to finally decide what this solar cycle looked like. Many people (including some professionals) jumped at the first peak of SC24 in 2012 and declared SC24 over - embarrassing. The current peak has the possibility of being the maximum but all the indicators at the moment point up. As a counter example, in 1984 solar activity suddenly fell off a cliff after a major burst of activity and never recovered."

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 05_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C6 event observed at 11:06 UTC on September 04 from Region 3413

CME WATCH - 2023.09.04: The frenzied pace of yesterday's CMEs off the west limb seems to have cooled off a bit. There were just two CMEs from the polar regions and one from the east limb. pic.twitter.com/iJrSFFJrA4

— Keith Strong (@drkstrong) September 5, 2023

There are currently 7 numbered sunspot regions on the disk: AR3417, AR3418, AR3419, AR3420, AR3421 and new regions AR3422, AR3423

AR3415 is gone

Total number of sunspots has increased to 100 (30 of these are grouped into 7 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 15% chance for M flares and 1% chance for X flares.All regions have stable magnetic fields.

A SUNSPOT OF INTEREST: A new sunspot is emerging on the sun's central meridian, directly facing Earth. Numbered AR3421, the active region has a mixed polarity .magnetic field that could harbor energy for geoeffective flares. SpaceWeather.com

● Auroral Activity

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. On September 04 Solar wind speed reached a peak of 467 km/s (Elevated speed) at 00:29 UTC. Total IMF reached 6 nT at 23:26 UTC

SEPTEMBER EQUINOX This weekend’s momentary high sun activity is over. It was fun, though! And the coronal mass ejection (CME) that hit on Saturday (September 2) – though having a relatively weak impact – brought us some nice auroral displays. Weak impact, but nice auroras … why? It could be the time of year. The September equinox is coming. And – around the September and March equinoxes – the geometry of the Earth and sun is such that auroral displays are more likely. That’s why solar physicists call this time of year aurora season. If this 2023 autumn aurora season combines with some higher activity from CMEs directed our way, look out for some spectacular auroras!
EarthSky.com

Aurora Oval Bz: 0.2 nT North

● Current Conditions at 04:10 UTC on September 05

▪︎ Geospace quiet (kp 1)
▪︎ Solar wind speed record: 392 km/sec (Normal speed)
▪︎ density: 2.71 p/cm³ (Moderate density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 4.92 nT
▪︎ Neutron Counts today: - 3.4 % (Low)
▪︎ X-ray Solar Flare: C2 at 00:43
▪︎ Sunspot number: 100 (SN 79 September 04)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 06_2023

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2 event observed at 08:12 UTC on September 05 from Region 3421 (N14W14) it caused a Minor R1 radio blackout over Indian Ocean

M FLARE HAPPENING NOW! Sunspot region AR1321, near Sun center, just produced an M2.1 flare that peaked at 08:12 UT. The movie (yes, Helioviewer is working again after taking yet another weekend off!) is taken in the SDO AIA 131A channel (about 10 MK), expect more of the same! pic.twitter.com/ajVR6zB5o8

— Keith Strong (@drkstrong) September 5, 2023

Two M class flares were recorded later from the same region 3421

● M1.2 at 19:45 UTC it caused a Minor R1 radio blackout over North Pacific Ocean
● M1 at 23:39 UTC it caused a Minor R1 radio blackout over West Pacific Ocean

There are currently 8 numbered sunspot regions: AR3417, AR3418, AR3419, AR3420, AR3421, AR3422, AR3423 and new region AR3424

Total number of sunspots has increased to 121 (41 of these are grouped into 8 active regions) NOAA forecasts for the next 24h: 95% chance for C flares, 25% chance for M flares and 5% chance for X flares.All regions have stable magnetic fields.

...Sunspot region AR3421.... is an interesting one. Aside from producing the largest flare of the past day, it has grown very quickly, since emerging near the center of the solar disk on September 3. It’s now the largest region on the Earth-viewed sun. We also saw a delta region starting to form – where a large bundle of magnetic field lines has broken through the sun’s surface, forming the primary sunspot – and with a smaller spot that has emerged nearby, creating a magnetically complex region where particles are energized and can then be violently expelled! But – for AR3421 – the delta region isn’t quite there yet. Check out our imagery to see AR3421’s development. This region could be our next source of geoeffective action, that is, action that will affect Earth with magnificent auroral displays. EarthSky.com

● Auroral Activity

The geomagnetic field has been at quiet to active evels for the past 24 hours. On September 05 Active geomagnetic conditions (Kp4)threshold Reached at 17:14 UTC Solar wind speed reached a peak of 461 km/s (Elevated speed) at 20:57 UTC. Total IMF reached 10 nT at 15:57 UTC

UNEXPECTED CME IMPACT: An unexpected CME hit Earth's magnetic field today (Sept. 5th @ 1529 UT). It was a minor impact but nevertheless capable of causing G1-class geomagnetic storms. Arctic sky watchers should be alert for auroras after nightfall
SpaceWeather.com

Aurora Oval Bz: -0.33 nT South

● Current Conditions at 04:00 UTC on September 06

▪︎ Geospace quiet (kp 2)
▪︎ Solar wind speed record: 391.4 km/sec (Normal speed)
▪︎ density: 4.49 p/cm³ (Moderate density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 2.56 nT
▪︎ Neutron Counts today: - 3.4 % (Low)
▪︎ X-ray Solar Flare: C9 at 23:42
▪︎ Sunspot number: 121 (SN 100 September 05)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com
EarthSky.org

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 07_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C5.3 event observed at 17:56 UTC on September 06 from Region 3421 (N15W27)

https://twitter.com/x/status/1699615860946583687

FARSIDE SOLAR ACTIVITY: Two spectacular CMEs billowed away from the farside of the sun on Sept. 5th: movie. The source was farside sunspot AR3413, which has become hyperactive only days after turning away from Earth. The two CMEs appear to be heading in the direction of sundiving Comet Nishimura; see below! SpaceWeather.com

https://twitter.com/x/status/1699361230731755545

Today’s top news: The sun is alive with filaments – that is, ropes of solar material arcing up from the solar surface. Some of these filaments are erupting within the solar disk, but most can be seen around the limb (edge) of our star. Filaments that can be seen protruding over the limb are known as prominences. The most notable prominence observed over the past day was the winding dance on the south pole that you can see below. As it erupted, it twisted in a tornado-like motion and sent plasma off into space. Elsewhere, we saw bright filament loops on the northeast limb and eruptions on the southeast limb. As the east of the sun is rotating towards us, these filaments may have been produced by sunspots that will come into view over the next few days. Stay tuned! EarthSky.org

There are currently 8 numbered sunspot regions: AR3417, AR3418, , AR3420, AR3421, AR3422, AR3423, AR3424 and new region AR3425

AR3419 is gone

Total number of sunspots has increased to 131 (51 of these are grouped into 8 active regions) NOAA forecasts for the next 24h: 95% chance for C flares, 25% chance for M flares and 5% chance for X flares.All regions have stable magnetic fields.

● Auroral Activity

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. On September 06 Solar wind speed reached a peak of 461 km/s (Elevated speed) at 17:24 UTC. Total IMF reached 6 nT at 12:51 UTC

Aurora Oval Bz: 3.44 nT North


● Current Conditions at 04:00 UTC on September 07

▪︎ Geospace unsettled (kp 3)
▪︎ Solar wind speed record: 373 km/sec (Normal speed)
▪︎ density: 4 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 4 nT
▪︎ Neutron Counts today: - 3.4 % (Low)
▪︎ X-ray Solar Flare: C2 at 02:42 UTC
▪︎ Sunspot number: 131 (SN 121 September 06)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com
EarthSky.org

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 08_2023

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2 event observed at 19:09 UTC on September 07 from Region 3425 (N23E52) it caused a Minor R1 radio blackout over North Pacific Ocean

POSSIBLE EARTH-DIRECTED EXPLOSION: NASA's Solar Dynamics Observatory recorded a dramatic explosion near sunspot AR3425 during the late hours of Sept. 7th. Debris from the M2-category blast may be heading for Earth. NOAA analysts are currently unraveling several overlapping CMEs to determine which one, if any, might belong to this explosion. SpaceWeather.com

CORONAL LOOPS. We can see several sets of coronal loops (bright arcs of plasma driven by the sun’s magnetic fields) protruding from the sun in the east, and these might have been produced by sunspot regions that will soon rotate into view. Plus, helioseismology has detected a large region on the sun’s far side, several days away from coming round to the Earth-viewed portion of our star. And helioseismology isn’t the only way of tracking the activity on the unseen side of the sun
EarthSky.org

There are currently 8 numbered sunspot regions: AR3417, AR3418, AR3421, AR3422, AR3423, AR3424, AR3425 and new region
AR3426

AR3420 is gone

Total number of sunspots has increased to 135 (55 of these are grouped into 8 active regions) NOAA forecasts for the next 24h: 95% chance for C flares, 25% chance for M flares and 5% chance for X flares.

AR3421 has developed a beta-gamma magnetic field that harbors energy for M-class flares. The number of sunspots in this region is 23 with an area of 220MH.

● Auroral Activity

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. On September 07 Solar wind speed reached a peak of 424 km/s (Elevated speed) at 23:29 UTC. Total IMF reached 6 nT at 22:01 UTC

Aurora Oval Bz: 0.75 nT North


● Current Conditions at 04:40 UTC on September 08

▪︎ Geospace unsettled (kp 3)
▪︎ Solar wind speed record: 350 km/sec (Normal speed)
▪︎ density: 3.54 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 3 nT
▪︎ Neutron Counts today: - 2.0 % (Low)
▪︎ X-ray Solar Flare: M2 at 19:08 UTC
▪︎ Sunspot number: 135 (SN 131 September 07)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com
EarthSky.org

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 09_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C4 event observed at 04:42 UTC on September 08 from Region 3425 (N23E43).

https://twitter.com/x/status/1700327424599142840

CME TO HIT SOLAR ORBITER: Europe's Solar Orbiter is about to get some good data. A farside halo CME is heading straight for the spacecraft. According to a NASA model, the CME will strike on Sept. 9th, giving Solar Orbiter's sensors an in situ view of the storm. The source of the blast was probably active sunspot AR3414, now transiting the farside of the sun. SpaceWeather.com

There are currently 6 numbered sunspot regions: AR3417, AR3418, AR3421, AR3423, AR3424, AR3425,

AR3422 and AR3426 are gone

Total number of sunspots has decreased to 123 (55 of these are grouped into 6 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 35% chance for M flares and 5% chance for X flares.

● AR3421 lost its gamma component.

● AR3425 now has a beta-gamma magnetic field that harbors energy for M-class flares. The number of sunspots in this region is 15 with an area of 140MH.

● Auroral Activity

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. On September 07 Solar wind speed reached a peak of 387 km/s (Normal speed) at 15:09 UTC. Total IMF reached 7 nT at 17:19 UTC

Aurora Oval Bz: 2.98 nT North


● Current Conditions at 04:40 UTC on September 09

▪︎ Geospace unsettled (kp 3)
▪︎ Solar wind speed record: 353 km/sec (Normal speed)
▪︎ density: 3.52 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 5.57 nT
▪︎ Neutron Counts today: - 2.1 % (Low)
▪︎ X-ray Solar Flare: C8 at 01:20 UTC
▪︎ Sunspot number: 123 (SN 135 September 08)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com
EarthSky.org

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 10_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C8.5 event observed at 01:20 UTC on September 09 from Region 3421 (N11W64)

There are currently 6 numbered sunspot regions: AR3418, AR3421, AR3423, AR3424, AR3425 and new region AR3427

AR3417 is gone

Total number of sunspots has decreased to 119 (70 of these are grouped into 6 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 45% chance for M flares and 5% chance for X flares. All regions have stable magnetic fields.

A LARGE SUNSPOT IS FACING EARTH: Big sunspot AR3423 has doubled in size since Friday; the active region is now more than 100,000 km wide with four primary dark cores wider than Earth. The sunspot's magnetic poles are well separated, so it does not yet pose a threat for strong flares. If this changes, however, the sunspot is directly facing Earth, so any strong flares will be geoeffective. SpaceWeather.com

SNAKE FILAMENT: Sunspot AR3425 continued flaring all day, over the past day. But there was very little ejecta associated with the flares. Take a look at our animation. It depicts the active filament/prominence that looked like a snake, undulating upwards into space. There was a C2.6 flare associated with this event at 18:19 UTC on September 8. EarthSky.org

● Auroral Activity

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. On September 09 Solar wind speed reached a peak of 460 km/s (Elevated speed) at 03:54 UTC. Total IMF reached 7 nT at 11:43 UTC

Aurora Oval Bz: 1.66 nT North


● Current Conditions at 04:30 UTC on September 10

▪︎ Geospace unsettled (kp 2)
▪︎ Solar wind speed record: 443 km/sec (Normal speed)
▪︎ density: 2.04 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF)
Bt: 6 nT
▪︎ Neutron Counts today: - 2.2 % (Low)
▪︎ X-ray Solar Flare: C8 at 01:55 UTC
▪︎ Sunspot number: 119 (SN 123 September 09)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
SpaceWeatherlive.com
SpaceWeather.com
EarthSky.org

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 11_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C8 event observed at 01:55 UTC on September 10 from Region 3423 (N16W16)

There are currently 9 numbered sunspot regions: AR3418, AR3421, AR3423, AR3425, AR3427 and new regions AR3428, AR3429, AR343O, AR3431

AR3424 is gone

Total number of sunspots has increased to 167 (77 of these are grouped into 9 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 40% chance for M flares and 5% chance for X flares. All regions have stable magnetic fields.

Sunspot AR3423 has a 'beta-gamma' magnetic field that harbors energy for Earth-directed M-class solar flares.

DRAMATIC ERUPTION: Big sunspot AR3423 has doubled in size since Friday; the active region is now more than 100,000 km wide with four primary dark cores wider than Earth. The sunspot's magnetic poles are well separated, so it does not yet pose a threat for strong flares. If this changes, however, the sunspot is directly facing Earth, so any strong flares will be geoeffective SpaceWeather.com

This is AR3423 no 3424

https://twitter.com/x/status/1700876930310873320

● Auroral Activity

The geomagnetic field has been at quiet levels for the past 24 hours. On September 10 Solar wind speed reached a peak of 546 km/s (Moderately high speed) at 02:20 UTC. Total IMF reached 6 nT at 01:30 UTC

Aurora Oval Bz: 1.84 nT Norte


● Current Conditions at 04:40 UTC on September 11

▪︎ Geospace quiet (kp 2)
▪︎ Solar wind speed record: 384 km/sec (Normal speed)
▪︎ density: 6.92 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF
Bt: 3.11 nT
▪︎ Neutron Counts today: - 2.5 % (Low)
▪︎ X-ray Solar Flare: M1.3 at 01:28 UTC from AR3429 (N09E60) it caused a Minor R1 radio blackout over Pacific Ocean



▪︎ Sunspot number: 167 (SN 119 September 10)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
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[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 12_2023

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M1.3

▪︎ X-ray Solar Flare: M1.3 at 01:28 UTC from AR3429 (N09E60) it caused a Minor R1 radio blackout over Pacific Ocean

There are currently 8 numbered sunspot regions: AR3423, AR3425, AR3427 AR3428, AR3429, AR343O, AR3431 and new region AR3432

AR3418 ans AR3421 are gone

Total number of sunspots has increased to 173 (68 of these are grouped into 8 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 55% chance for M flares and 10% chance for X flares. Sunspots AR3423, AR3429 and AR3431 have mixed-polarity magnetic fields that harbor energy for M-class solar flares.

https://twitter.com/x/status/1701418041785950256

https://twitter.com/x/status/1701209487367909761

● Auroral Activity

The geomagnetic field has been at quiet levels for the past 24 hours. On September 11 Solar wind speed reached a peak of 429 km/s (Elevated speed) at 19:02 UTC. Total IMF reached 8 nT at 01:33 UTC

Aurora Oval Bz: 1.49 nT North

● Current Conditions at 05:11 UTC on September 12

▪︎ Geospace quiet (kp 2)
▪︎ Solar wind speed record: 365 km/sec (Normal speed)
▪︎ density: 6.3 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF
Bt: 7 nT
▪︎ Neutron Counts today: - 2.4% (Low)
▪︎ X-ray Solar Flare M1.8 at 04:26 from AR3425 (N27W01) it caused a Minor R1 radio blackout over Indonesia



▪︎ Sunspot number: 173 (SN 167 September 11)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
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[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT SEPTEMBER 13_2023

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2.5 event observed at 07:07 UTC from Region 3423 (N16W44). It caused a Minor R1 radio blackout over India

Sun activity for September 12, 2023: Action picking up with 4 M flares!​

Today’s top news: Sun activity is picking up! Over the past day, we observed four M flares across three different sunspot regions. This increase in intense flares has come alongside an increase in magnetic complexity for three regions, including two of the M flare producers. The more magnetically complex the sunspot, the higher the likelihood that it will produce high-intensity flares. SkyEarth.org

There are currently 8 numbered sunspot regions: AR3423, AR3425, AR3427 , AR3429, AR343O, AR3431, AR3432 and new region AR3433

AR3428 is gone

Total number of sunspots has increased to 141 (61 of these are grouped into 8 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 55% chance for M flares and 10% chance for X flares. Sunspots AR3423, AR3425 have mixed-polarity (beta-gamma) magnetic fields that harbor energy for M-class solar flares.

● Auroral Activity

The geomagnetic field has been at quiet to major storm levels for the past 24 hours. On September 12, Solar wind speed reached a peak of 429 km/s at 12:49 UTC Active geomagnetic conditions (Kp4) threshold reached at 12:49 UTC. Minor G1 geomagnetic storm (Kp5) threshold reached at 14:14 UTC Moderate G2 geomagnetic storm (Kp6) threshold reached at 17:59 UTC
Total IMF reached 20 nT at 13:50 UTC (Could this have an influence on more seismic or volcanic activity in the coming days? Let's wait and see)

SURPRISE GEOMAGNETIC STORM: An unexpected CME hit Earth's magnetic field on Sept. 12th (1237 UT), sparking a G2-class geomagnetic storm and bright auroras around the Arctic Circle. Skies over Iceland erupted in swirls of red and green light:​

​

"It was a wonderful night with more Northern Lights than I expected," says photographer Jónína Óskarsdóttir, who needed only a 5-second exposure to fill her camera's frame with uninterrupted color. Hours later, the storm was subsiding when night fell over North America. Dan Bush in Albany, Missouri, photographed the faint red afterglow:​

​

"The display was brief, but detectable by my camera," says Bush. "Our latitude here is +40.2N." Where did the CME come from? It is probably one of many CMEs that left the sun on Sept. 8th:​

​

Right now, the sun is producing so many CMEs flying in so many directions, it can be hard for analysts to disentangle the overlapping storm clouds. In the chaos of Sept. 8th, an Earth-directed CME was clearly missed. SpaceWeather.com​

Aurora Oval Bz: -1.92 nT South

● Current Conditions at 05:11 UTC on September 13

▪︎ Geomagnetic storm G1 (kp 5) in progress
▪︎ Solar wind speed record: 429 km/sec (Elevated speed)
▪︎ density: 5.54 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF
Bt: 8.47 nT
▪︎ Neutron Counts today: - 2.4% (Low)
▪︎ X-ray Solar Flare C1 at 0001 UTC
▪︎ Sunspot number: 141 (SN 173 September 12)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
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[Puma]

SOLAR CYCLE ACTIVITY REPORT SEPTEMBER 14_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C5 event observed at 22:00 UTC on September 13 from Region 3423 (N16W44).

There are currently 6 numbered sunspot regions: AR3423, AR3425, AR3429, AR343O, AR3431, AR3433

AR3427 and AR3432 are gone

Total number of sunspots has decreased to 109 (49 of these are grouped into 6 active regions) NOAA forecasts for the next 24h: 90% chance for C flares, 40% chance for M flares and 5% chance for X flares.

Sunspots AR3429 has developed a beta-gamma magnetic field that harbors energy for M-class flares

● Auroral Activity

The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. On September 13 Solar wind speed reached a peak of 442 km/s at 03:58 UTC Total IMF reached 15 nT at 23: 45 UTC Once again we had an intense solar magnetic field.

Total IMF reached 20 nT at 13:50 UTC (Could this have an influence on more seismic or volcanic activity in the coming days? Let's wait and see)

● M 6.1 - West Chile Rise
2023-09-13 11:49:15 (UTC)
36.220°S 97.938°W. 10.0 km depth
USGS earthquake alert

Let's wait and see what happens next

Aurora Oval Bz: 8.13 nT North

● Current Conditions at 05:10 UTC on September 14

▪︎ Geospace active (kp 4) Threshold Reached: 02:10 UTC
▪︎ Solar wind speed record: 440 km/sec (Elevated speed)
▪︎ density: 4.45 p/cm³ (low density)
▪︎ Interplanetary Magnetic Field (IMF
Bt: 10.32 nT
▪︎ Neutron Counts today: - 4.2% (Low)
▪︎ X-ray Solar Flare C1 at 01:24 UTC
▪︎ Sunspot number: 109 (SN 141 September 13)
▪︎ Spotless Days 2023 total: 0 days (0%)
▪︎ There are no significant equatorial coronal holes on the Earthside of the sun.
..
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SpaceWeather.com
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