Fwd: Sweden Aurora

[Roy Easto]

At the meeting tonight I showed a timelapse of the spectacular Aurora I
saw in Sweden earlier in February. Timelapses are 50x speeded up. Please
make sure you have selected the highest quality available to see them:

1st timelapse: https://youtu.be/8JVVO1wzRVo

2nd timelapse: https://youtu.be/B0IyFkHjeu8

If you don't like following links then head to youtube and search for
"sweden 2025 aurora @royeasto885 rajamaa"

Still photos, attached, were taken by a iphone on night mode (not mine).

The location was right in the wilderness above the Arctic circle on the
border of Sweden and Finland. We had 3 clear nights out of 7 and the
aurora was spectacular on all 3 nights.

The current solar maximum is forecast to last until around this time
2026 so if you want to see them I'd recommend sometime this spring or
autumn in a rural part of the Nordic countries.

Roy

[William Bottaci]

Thank you for these; spectacular.

Do you know why, on the first video, the aurora is a long filamentary structure, on appearance at least?

Great talk you gave, much enjoyed it.

William

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[Casper Dyne]

Roy, your presentation was superb with various aspect of the night sky. I enjoyed every minute. Thank you! 

Casper

Sent from Outlook for iOS

---

From: croydo...@googlegroups.com <croydo...@googlegroups.com> on behalf of William Bottaci <w.bo...@gmail.com>
Sent: Friday, February 28, 2025 2:21:16 AM
To: croydo...@googlegroups.com <croydo...@googlegroups.com>
Subject: [croydonastro - 8038] Fwd: Sweden Aurora

 

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[Roy Easto]

All I can say is that the aurora is supposed to be an oval around the magnetic pole as electrons stream in. As shown in this ISS video:

https://www.youtube.com/watch?v=ogtKe7N05F0

it becomes more complex with multiple filaments moving around so you can have one filament to the south and another one to the north then we get a small shift and one vanishes over the horizon as another goes overhead.

Juno took a great shot of Jupiter's aurora as it passed over the poles:

https://www.jpl.nasa.gov/news/nasas-juno-reveals-dark-origins-of-one-of-jupiters-grand-light-shows/

Roy

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