Laura said:You know, considering the long-term quietness of the sun for awhile now, these recent flares etc are curious. What is OUT there that is triggering them?
Ive been thinking along these lines over the last week. Things are certainly lively to say the least. What's next I wonder.Andre' said:Laura said:You know, considering the long-term quietness of the sun for awhile now, these recent flares etc are curious. What is OUT there that is triggering them?
I thought about the same thing, yes the Florence asteroid is one of the biggest space rocks in the last 20 years that passed closely to our planet, but what if that's not the whole banana? I feel that there is something else that triggered this violent reaction of our Sun, i mean in one week we had 4 mega solar eruptions, 2 of which were X - class CMEs one of them being the strongest in 12 years...
Thebull said:Ive been thinking along these lines over the last week. Things are certainly lively to say the least. What's next I wonder.Andre' said:I thought about the same thing, yes the Florence asteroid is one of the biggest space rocks in the last 20 years that passed closely to our planet, but what if that's not the whole banana? I feel that there is something else that triggered this violent reaction of our Sun, i mean in one week we had 4 mega solar eruptions, 2 of which were X - class CMEs one of them being the strongest in 12 years...
During Friday's severe geomagnetic storm, auroras were seen in at least 18 US states including Alaska, Maine, Connecticut, New York, Kentucky, Massachusetts, Illinois, Minnesota, Delaware, Michigan, North Carolina, Ohio, Iowa, Maryland, Virginia, Vermont, and South Dakota. Remarkably, Northern Lights descended as far south as Arkansas.
Brian Emfinger sends this picture from Morillton, AR.says Emfinger."I set up my camera about an hour after sunset and immediately recognized some reddish aurora with some curtains,""From the first picture, the aurora was clearly fading and within 15 minutes was completely gone."
Arriving earlier than expected, the flank of a CME hit Earth's magnetic field on Sept. 12th (20:00 UT). The impact has sparked a minor G1-class geomagnetic storm. NOAA forecasters say the storm could intensify to G2-class on Sept. 13th. If so, auroras in the USA could appear as low as New York to Wisconsin to Washington state.
Earth's magnetic field is recovering from a jarring CME impact during the late hours of Sept. 7th (23:00 UT). First contact with the CME produced a severe G4-class geomagnetic storm and auroras in the USA as far south as Arkansas. That storm has subsided, but more storms are in the offing. The solar wind around our planet is blowing like a veritable gale (700+ km/s) as we move through the CME's wake. Isolated periods of mild to strong geomagnetic storming are likely on Sept. 8th and 9th
[size=10pt]Photo: Auroras reflected from the calm waters of Cape Cod, Massachusetts, on Sept. 8, 2017. Credit: Chris Cook
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A coronal hole high speed stream, originating from a recurrent, positive polarity coronal hole seen in the SDO/AIA 193 image above, is likely to cause geomagnetic storming at the G2 level on 13 September 2017, and at the G1 level on 14 September. Stay tuned for additional updates.
Fast solar wind bombards Earth this week from a large coronal hole gracing much of the Sun's face. We have already reached storm conditions from the early blast of this wind, with aurora dipping down into mid-latitudes. We will likely reach active conditions again sporadically throughout this week. Aurora photographers should stay on their toes, especially at high-latitudes.
Amateur radio operators should enjoy auroral propagation modes, especially at night, and GPS users should enjoy clear signals away from the aurora. On top of this storm, the Sun gives us a momentary glimpse at an active region that looks to be coming from the new solar cycle. As cycles typically overlap each other by a few years, this is not uncommon.
What may be a game changer for Hawaii is the fact that there is a Geomagnetic storm in progress as we speak:
https://www.youtube.com/redirect?q=...txsBqdzz2eS9ruQp8MTUyNjY0MjM4MEAxNTI2NTU1OTgwSpace Weather finally clams down just in time for a new coronal hole to cause another solar storm and bring aurora, possibly down to mid-latitudes. We are already beginning to see the early effects from this latest burst of fast solar wind to hit Earth. Although not nearly as intense as the last storm we had, it should bring us to active conditions at the very least over the next several days. We also have a new bright region entering Earth-view this week that is helping boost solar flux and keep radio propagation at marginal conditions over the next several days. As usual, with a spotless Sun, GPS conditions are good on Earth's dayside this week, with only issues near aurora on the night side. Learn details of this coming solar storm, what emergency responders have to look forward to, and what else the Sun has in store. Also catch a surprise ending, specially made for a cast member on TWiT-TV's Ham Nation. For daily and often hourly updates (during active times) visit me on Twitter: https://twitter.com/TamithaSkov
https://www.youtube.com/watch?v=iSKbIso0ySE
The Sun wakes up this week with several new bright regions that have rotated into Earth-view. The newest of these regions has been actively firing solar flares since it was on the Sun's backside. All this activity has boosted the solar flux so amateur radio operators and emergency responders are enjoying decent radio propagation.
Meanwhile some pockets of fast wind continue to pummel Earth, keeping things at unsettled conditions. The wind isn't fast enough to bring us up to storm levels and bring aurora down to mid-latitudes, but it is enough to help improve GPS reception at low latitudes. Learn more about the new active regions, when the next solar storm is expected, and what else the Sun has in store for us this week. For daily and often hourly updates (during active times) visit me on Twitter: Dr. Tamitha Skov (@TamithaSkov) | Twitter