March 24th Aurora

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Re: March 24th Aurora - Animation added

Post by Averton »

MapleRidge wrote: Sat Mar 25, 2023 2:03 am Hi all...

I processed 23 photos of the aurora taken between 2:54 and 3:00 UT…all 5 second exposures with the Canon 60Da/8mm, f3.5 lens. I had to re-size them quite a bit to get the animation down to a reasonable size to post.

I think I started to take photos near the middle of the peak display...I had a few before this started but moved the camera and they do not match up with the others. These were some of the test shots to figure out the exposure which makes them harder to add in.

The video is available on my Flickr account:
https://www.flickr.com/photos/185395281 ... ateposted/

Brian
Wow, really great time lapse Brian. The colours are beautiful!


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Re: March 24th Aurora

Post by Averton »

DeepSolar64 wrote: Sat Mar 25, 2023 5:49 am What event on the Sun caused this solar storm? I know of no X-Class flare caused CME.
A large coronal hole has moved across the Sun this week to the point that it is facing Earth.
https://www.livescience.com/enormous-ho ... ras-friday
https://www.businessinsider.com/coronal ... rth-2023-3


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Re: March 24th Aurora

Post by MapleRidge »

Mark and Clare & Peter...

Thanks for your comments on the image and animation :bow

Stuart, thanks for pulling the additional data together too. It was a relatively short lived show form what I could tell visually...and my photos only covered 6 minutes of it (seemed much longer). The diffuse glow was active for at least a half hour before...maybe longer but I wasn't out looking.

I knew there was a coronal hole, but had no idea it was going to trigger an event like this and since there hadn't been a flare/CME I figured the coronal hole was the source (plus close to the equinox).

Brian


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Re: March 24th Aurora

Post by EGRAY_OBSERVATORY »

An amazing capture Brian

Thanks for sharing

Terry


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Re: March 24th Aurora

Post by Carbon60 »

The solar wind from the coronal hole hadn’t arrived at the time of the event. It is due today (25th).

Stu.


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Re: March 24th Aurora

Post by DeepSolar64 »

The coronal hole was certainly positioned right to get us on March 22. If the 24th event was not caused by the coronal hole then what caused it?
When I get a chance I'll have to research it.


SDOAIA191_1K_3-22-23.JPG
SDOAIA191_1K_3-22-23.JPG (152.42 KiB) Viewed 433 times
SDOAIA193_1K_3-23-23.JPG
SDOAIA193_1K_3-23-23.JPG (151.12 KiB) Viewed 433 times


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Re: March 24th Aurora

Post by MapleRidge »

I thought this hole had been active for many days, though closer to the SE limb than its current position.

Brian
Last edited by MapleRidge on Sat Mar 25, 2023 5:19 pm, edited 2 times in total.


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Re: March 24th Aurora

Post by cte »

That is fantastic ! The last aurora visible from northern italy (I am at 45 north) was in december 1989 close to the solar maximum. I was just a child at that time, but I remember many pictures of the red sky before dawn. Our latitude is too low to get the green ribbons, but it was definitely possible to observe tge red glow


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Re: March 24th Aurora

Post by KMH »

Great animation, Brian!
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Re: March 24th Aurora

Post by Carbon60 »

DeepSolar64 wrote: Sat Mar 25, 2023 3:45 pm The coronal hole was certainly positioned right to get us on March 22. If the 24th event was not caused by the coronal hole then what caused it?
When I get a chance I'll have to research it.



SDOAIA191_1K_3-22-23.JPG

SDOAIA193_1K_3-23-23.JPG
Hi James,
Possibly an unseen close encounter with a CME according to Spaceweather.com There’s quite a lot of uncertainty about this.

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Re: March 24th Aurora

Post by nicspenceryork »

Wow Brian, that's magical!
Nic


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Re: March 24th Aurora

Post by MapleRidge »

Thanks Nic :bow

Good displays that this one were long overdue ;)

Brian


Brian Colville

Maple Ridge Observatory
Cambray, ON Canada

Photos: https://www.flickr.com/photos/185395281@N08/albums

10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
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Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM

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Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
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