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SOLAR WATCH * Huge X8.2 Flare Sept. 10, 2017! (Updated Daily)
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[quote:Hugh M Eye:MV8xMzgyOTUyXzM1MjgwNTY5XzM2MDEzNUEw] This page from Scholarpedia is an excellent mini-textbook intro to solar activity for both newbies and veteran sun-watchers. Here's a snippet I found interesting- [b]Flares, Microflares, and Nanoflares-[/b] Flare-like activity extends to smaller scales and to lower energies. The weakest events - nominally of order 10-6 of the energy of a major flare - are the microflares. Parker proposed the term nanoflare for still weaker events hypothetically associated with the formation of current sheets and their dissipation. [b]The sticking and slipping of the coronal plasma between these temporary static equilibria, the nanoflares, would then constitute the heating mechanism involved with the extraction of magnetic free energy[/b] in the coronal magnetic field stressed by random footpoint motions. The nanoflares would be essentially too numerous to recognize individually, and perhaps not surprisingly no unambiguous evidence for their existence has yet appeared. The microflares, however, are easy to observe by a variety of techniques because of their isolated spatial and temporal distributions. http://www.scholarpedia.org/article/Solar_activity Also had some rare graphics there- Flare/Sunspot close-up from Hinode: http://www.scholarpedia.org/w/images/2/24/Solarflare_hinode.png Classic CME pic from SOHO: http://www.scholarpedia.org/w/images/6/6d/CoronalMassEjection.jpg And before SDO there was TRACE and RHESSI....here's a movie of a strong flare from Jan. 20, 2005: http://www.scholarpedia.org/w/images/9/9f/Solar_activity_flare_med.mov [/quote]
Original Message
Please See Current Events Discussion On Last Page :)
We have just had another huge X flare measuring at a X8.2 originating from sunspot 2673
On September 11, 2017
[
link to legacy-www.swpc.noaa.gov
]
ALL flares recorded ARE Earth facing regardless of where the sunspot is located
-----------
CME FROM X9 HAS ARRIVED!
Issue Time: 2017 Sep 07 2242 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2017 Sep 07 2255 UTC
Valid To: 2017 Sep 07 2330 UTC
IP Shock Passage Observed: 2017 Sep 07 2229 UTC
On September 6th we have had 2 X flares! A X2.2 at 09:10 utc & a secend larger flare just a few hours later of X9.3 at 12:02 utc. There is a large widespread Earth directed CME associated with this latest X flare as we can see here
[
link to stereo.gsfc.nasa.gov (secure)
]
[
link to stereo.gsfc.nasa.gov (secure)
]
An update as to the arrival time of this CME will be added once all data has been reviewed.
The X9.3 flare is the 14th largest X flare ever recorded!
On September 4th we had 7 M flares from fast growing sunspot 2673, with at least 1 large dense Earth directed CME. This CME will arrive late in the day on Wednesday September 6th.
There is now a 25% chance for X flares over the next 24hrs & 71% chance for M flares
We have a Long Duration M2.4 Solar Flare starting
01:05 UTC July 14th 2017
There was a full halo CME observed with this solar flare. The associated CME is Earth Directed. See discussion on the last page for all updates!
1,000,000 Views hit on July 3, 2012
A big thanks to all the wonderful contributors of
the GLP Solar Watch thread!
Please See Current Events Discussion On Last Page :)
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