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SOLAR WATCH * Huge X8.2 Flare Sept. 10, 2017! (Updated Daily)
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[quote:Spittin'Cesium:MV8xMzgyOTUyXzM2MDg2MzU5XzQwRUFGRTlC] [quote:muse_1111:MV8xMzgyOTUyXzM2MDgzMDM0XzVEOTk2QkNC] [quote:Da fuq:MV8xMzgyOTUyXzM2MDgyOTE1X0FGQzU2NTM1] [quote:muse_1111:MV8xMzgyOTUyXzM2MDgyNjY5X0UyNkVGOEU0] [quote:Hugh M Eye:MV8xMzgyOTUyXzM2MDgyNTE3XzQ4RDFGRDdE] Filament lifting off SW: http://halpha.nso.edu/movie_B.html [/quote] Very interesting, Hugh. That looks like the exact spot where the Earth/Sun footprint is for today. It will be interesting to see if we get fragged! http://i49.tinypic.com/xp0xg0.jpg [/quote] How much closer could ya get. [/quote] Could that filament instability be the cause for the activity shown on the ACE Mag field & plasma chart? http://www.swpc.noaa.gov/ace/Mag_24h.gif [/quote] Could be,Imo...also why the Phi readings have been flipping about too perhaps? Look at the rise in SW Velocity and Temperature just now alsohttp://www.swpc.noaa.gov/ace/MAG_SWEPAM_6h.html ! About Phi that I snipped from a posted snip from our luvly SolQueen,NiNz - '[b]Magnetic Field Phi Could you explain what Phi is, in terms of the Sun's magnetic field? Is it the angle of the magnetic field? What influences it? I assume that you are referring to plots of the magnetic field as measured by ACE (located ~1 million miles in front of the Earth (between the Earth and the Sun. These plots appear on the ACE Real Time Solar Wind page. In these plots Phi is indeed the angle of the interplanetary magnetic field that is being carried out by the solar wind. Phi is measured in the GSM (geocentric solar magnetospheric) coordinate system. In this system the X-axis points from the Earth to the Sun and the Z-axis is pointing along the direction of the Earth's north magnetic pole. This puts the Y-axis roughly pointing to the left as one looks at the Sun from the Earth. Phi is the angle made by the field in the XY plane. This means that Phi would be 0 deg if the were pointing at the Sun and 180 deg if it were pointing from the Sun to the Earth. Looking at the plot for December 14-19 I see that it is most often between 90 deg and 180 deg (say ~135 deg on average). This is a typical angle when the magnetic field is coming from the southern hemisphere of the Sun (at least during the decade from 2000 to 2010 - the Sun's field flips over every 11 years or so). Then there are also quite a few periods when it is at ~315 deg, which is the typical angle when the field is coming from the northern hemisphere. Since we are near the equator of the Sun, we sometimes see magnetic field from the northern hemisphere of the Sun and sometimes from the southern hemisphere. You may wonder why Phi is not either 0 deg or 180 deg if the field is coming from the Sun. The reason is that the Sun rotates every 27 days, so the field is formed into a spiral, much like what happens with a spinning water sprinkler. Maybe you will understand things better using the diagram at Windows to the Universe or going to the Cosmicopia page on the Sun's magnetic field. Dr. Richard Mewaldt (December 2005)[/b] Thanks NiN for that ^ ^ from way back when:sun::hf: :hi: [/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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