- #71
Stavros Kiri
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Daily Sun: 26 Nov 20
See also:Stavros Kiri said:LITTLE GREEN CANNONBALLS OF LIGHT: Researchers and citizen scientists have just discovered a new phenomenon: "Little green cannonballs of light" streaking through the atmosphere faster than 1000 mph during some geomagnetic storms. And they're not auroras. Visit today's edition of Spaceweather.com for the full story.
Daily Sun: 29 Nov 20 |
Interesting, the high latitudes of the northern hemisphere had a good NLC season this yearStavros Kiri said:
Wow!davenn said:Interesting, the high latitudes of the northern hemisphere had a good NLC season this year
I have a friend in my FB astronomy group who was regularly posting photos of them that
he could see from his home in England
They were well seen and photo'ed in southern New Zealand and AustraliaStavros Kiri said:Space Weather News for Wed. May 12, 2021
CME SPARKS STRONG GEOMAGNETIC STORM: A coronal mass ejection (CME) hit Earth's magnetic field on May 12th, sparking the strongest geomagnetic storm of young Solar Cycle 25. Auroras would have been widely seen across Europe and in many US states, except for the fact that the storm occurred mostly during daylight hours. A high-latitude afterglow might still be visible tonight.
Thanks Dave! ... Amazing&Great! ...davenn said:
sophiecentaur said:I wonder about visibility at 52N. It would be a 'first' for seeing anything of astronomical interest from home.
I will pop my head outside - just in case. Thanks for the heads up!
Grrrr. 52N is the other end from the green ring.davenn said:Did you see anything on the low horizon ?
The auroral oval was quite a way north of the UK ( I don't know where in the UK you are ?)
View attachment 284510
Indeed. I'm about half a degree further south, which is also disappointing - seeing aurorae is on my bucket list.sophiecentaur said:Grrrr. 52N is the other end from the green ring.
Ho hum!
sophiecentaur said:Grrrr. 52N is the other end from the green ring.
Ho hum!
Just remember, that this was just a small event. A much stronger event ( much larger CME, equatorial coronal hole) and the auroral oval will come much further south so don't give up hopeIbix said:Indeed. I'm about half a degree further south, which is also disappointing - seeing aurorae is on my bucket list.
(The northern tip of mainland UK is about 58.5N, for info.)
As they say: "watch this space". Boom boom!davenn said:so don't give up hope
There are many types of "boom boom". Let's "hope for the best but be prepared for the worst ..."sophiecentaur said:As they say: "watch this space". Boom boom!
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More B-class solar flares only, so far ... (B6 & B3, July 1 & 2, so far ...)Stavros Kiri said:Besides, [cf. previous post(s),] AR2835 has already given B2 and C3 flares (but holds dynamics/is a strong canditate even for M-class solar flares ...):
I was wondering about the current cycle. My wife had been asking me about radio interference the last several weeks, which I also noticed, and I assumed it was related to solar activity and the ionosphere, and related to the auroral activity.Stavros Kiri said:SOLAR CYCLE UPDATE: Solar Maximum might arrive a little sooner than expected. Recent sunspot counts suggest that new Solar Cycle 25 is over-performing compared to official forecasts, and could peak in 2024 instead of 2025.
If you have somewhere indoors with a long 'throw' between a window and a wall, a pinhole camera can give you a fair sized projected image or, even better, use half a pair or binoculars and (again indoors) you can project a very watchable image on a white sheet of paper (or grey, if the image is too bright for comfort). It's much easier looking down on an image than directly upwards. Experiment!Stavros Kiri said:CAUTION: USE FILTERS or Eclipse Solar Glasses to watch etc. ..
That would reduce significantly the radiation too etc. ... (It's actually a lot safer perhaps, if you do it right and be careful ...)sophiecentaur said:If you have somewhere indoors with a long 'throw' between a window and a wall, a pinhole camera can give you a fair sized projected image or, even better, use half a pair or binoculars and (again indoors) you can project a very watchable image on a white sheet of paper (or grey, if the image is too bright for comfort). It's much easier looking down on an image than directly upwards. Experiment!