TheAuroraGuy

That N2 band is pretty cool!

"A Question of Sanity"
Northeast of Calgary 20251002T0349Z
Rarely does the the aurora explode this fast, the peak of the substorm lasted all of 10 minutes.... it leaves one gob smacked, and one questions "What is Reality"?

Rockyford County East of Calgary 20250915T0530Z First image a SAR arc associated with an unknown green auroral arc, 2nd image the SAR arc at zenith. The display lasted no longer than 5 minutes.

Bug on my Fern

overhead green aurora with hints of pink and purple

overhead green and purple aurora

green and purple overhead aurora

green aurora with purple rays...hint of a bird's head in the centre

missed the first two nights of #aurora in Southern Manitoba due smoke and clouds...third night was the charm...so grateful for a clear sky tonight @tamithaskov.bsky.social

Noctilucent Clouds and the Aurora Borealis, North of Calgary, June 09, 2025

"Expecting the Unexpected"
Jumpingpound, Alberta 20250509T0829Z
Watch the Sun and remember that Coronal Holes(51 and 52) that are negative in the Spring, and are Transequatorial, produce magnificent geomagnetic storms.

Lenticular clouds stacked

The lenticular clouds stacked with ocotillos

The lenticular clouds at sunset with ocotillo

The lenticular clouds stacked above Sunset Mountain

The lenticular clouds and formations were spectacular on Monday evening around Borrego Springs. Spread out over several posts (Photos: Sicco Rood). (post 3)

The greatest astronomy PhD ever written Cecilia Payne realised that the Sun and stars are primarily hydrogen and helium - only for a man to take credit for the discovery

Great article on Cecilia Payne, who discovered that the Sun -- and therefore stars -- is made of hydrogen and helium.

newhumanist.org.uk/articles/641...

That's one of his better pieces.

It's like a disease.... pray that we start to come to our senses and realize that research is necessary....

"The Movie Caught In Between"
West of Calgary Seebe, Alberta,20250501T0540Z A SAID arc/SAR camera is pointing ESE. Notice the RAGDA near the beginning of the movie.

"The 1st Movie Caught In Between"
West of Calgary Seebe, Alberta, A SAID arc/SAR camera is pointing NNW. Notice the RAGDA near the beginning of the movie and the dual red arcs at the end.

The location is Seebee Alberta

"Caught In Between"
Last night West of Calgary Seebe, Alberta, this is a SAID arc in an enveloped auroral arc, or something. First time that I have seen anything like it, my camera is pointing NNW for the first shot, time 20250501T0540Z, the second shot is taken to the ESE, the time was the same.

"The Gentle Dance"
East of Cayley Alberta 20250404T0530Z

Gentle substorms from a CIR impact, sweeps the aurora borealis into the mid latitude skies in Southern Alberta.

Me too!

"WTF Is That"
Sibbald Pond West of Calgary Alberta 20250419T0430-0510Z
This strange pulsating Aurora(Proton?) cigar, pulsated for 40 min before dissipating. #Protonaurora #Proton #Aurora #Auroraborealis #northernlights

"And The Heavens Said May I"
East of Keoma Alberta 2025018T0400-0500Z
One of the prettiest aurora's that I have witnessed, but that may have to do with the awesome glass like pond for reflection shots . #Aurora #Auroraborealis #northernlights

"Like I SAID"
Northeast of Calgary 20250418T0520Z
At the end of the first substorm a SAID aka STEVE formed and stayed visible for about 30-40 minutes. It was difficult to make out with the eye, so I set my camera's to ISO 5000, F2.8, 13-15 seconds. There was no Picket Fence that I could see.

"The Glass Slippers"
Northeast of Calgary 20250418T0420Z
It took awhile for the charge to build but when the substorm hit it was a beautiful sight to behold. This was a night where the pond was as still as a reflection in a mirror, and I was fortunate enough to be able to capture the aurora.

It appears that the culprit behind the Northward trend in the BZ is a CIR From Coronal Hole 35. Notice the rise in density and the drop in the solar wind speed usually indicative of a CIR

There is also the CH HSS from CH 35 to consider but it may be too early for the stream.

And just like that the field swings North! Won't be any aurora tonight if this keeps up!

ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2025 Apr 16 2055 UTC
Synoptic Period: 1800-2100 UTC

The slower stream left the Sun at a max velocity of 300km/s the second at 660km/s. I believe that the 2nd would have overtaken the first, and what we are seeing is the fields interacting, hence the time differential in the flux rope change.

How about that folks the field finally turned in favour of an auroral show at upper lower latitudes. If this was later in the day this would be a "Get Out There" post. Sadly we will have to sit on our hands and sweat it out till it gets dark, here's hoping! #Aurora #Auroraborealis #northernlights

This bodes well for those in the West. It appears that the main bulk of the CME is 4 hours behind the initial bulk.

If this is the CME arrival it will make my day! #Aurora #Auroraborealis #northernlights

For those who are interested in the aurora. A filament release on the Sun has an earthward component and we should see it's arrival on or about the 16th of April, 2025

"Lost In Transition"
East of Crossfield 20250409T0300-0340Z
Coronal hole streams seem to affect the aurora and we see different structures that we see in a CME geomagnetic storm. This is the first major substorm of the morning, it lasted a whopping 60 minutes!