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SOLAR WATCH * Huge X8.2 Flare Sept. 10, 2017! (Updated Daily)
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[quote:Helios Maximus:MV8xMzgyOTUyXzcxMDU1NTQ2XzY2MEJGNUQy] [quote:joinca:MV8xMzgyOTUyXzcxMDMzODcwXzZCNjNBMEI=] NASA Sun & Space @NASASun After 16 years, we've retired our solar observatory RHESSI. From its orbit around Earth, RHESSI saw more than 75,000 solar flares over its lifetime, helping scientists unravel the complexity of these events — and paving the way for even more science. more info here: https://twitter.com/NASASun/status/1064909665157427201 [/quote] RHESSI was a very valuable and ground-breaking mission. RHESSI first observed gamma rays from a solar eruption. From Space Daily- "High energies are always interesting in astronomy," University of Minnesota solar scientist Lindsay Glesener said. "They're the biggest explosions, the hottest plasma. But flares are going on at our Sun, which is right next to us and affects us in lots of ways. When I was a grad student,[b] it took just one conversation with Robert Lin, the principal investigator from 2002 to 2012, to convince me flares are the most fascinating thing in the universe."[/b] (snip) "[b]RHESSI had several firsts," Dennis said. "No one had ever imaged X-rays at this high an energy level before, or imaged gamma rays at all[/b]. RHESSI made great strides by making energy measurements with higher resolution than had previously been possible." [b]Solar Flares Aren't Simple[/b] Early RHESSI observations of a strong flare on April 15, 2002, showed X-rays coming from two different places at once: one high in the Sun's atmosphere and another lower down. Researchers interpreted this to mean a huge punch of energy occurred between the two spots. After tracking the energy in the two-sided explosion, they realized part of the explosion's energy shot high into the Sun's atmosphere and burst into a cloud of hot plasma to become a coronal mass ejection, while the other part bore down towards the surface, exploding into a flare. These explosions - the most powerful in the solar system - came to be known as solar eruptive events, in which the Sun's strongest flares and coronal mass ejections are linked, occurring at the same time. [b]RHESSI introduced solar researchers to entirely new questions on the nature of flares. During an intense October 2003 flare, scientists noticed X-rays and gamma rays coming from two different places.[/b] Although electrons and ions have different masses, scientists expected them to originate from the same spot in the flare. Since each kind of emission reflects the presence of different kinds of particles, the unexpected disparity hinted at different mechanisms guiding the movements of each type of particle. [b][color=red]Scientists still don't fully understand this process.[/color][/b] Much more here: http://www.spacedaily.com/reports/NASA_retires_prolific_solar_observatory_after_16_years_999.html Movie clip of Jan 20, 2005 X-flare: http://www.scholarpedia.org/w/images/9/9f/Solar_activity_flare_med.mov RHESSI NASA Mission Homepage w/ links to archived data: https://hesperia.gsfc.nasa.gov/rhessi3/ [b]Shine On Suntards![/b] :8/31-AR2674: [/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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