APOD: Aurora over Icelandic Waterfall (2023 Jul 04)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 5314
Joined: Fri Dec 04, 2009 3:27 am

APOD: Aurora over Icelandic Waterfall (2023 Jul 04)

Post by APOD Robot » Tue Jul 04, 2023 4:05 am

Image Aurora over Icelandic Waterfall

Explanation: It seemed like the sky exploded. The original idea was to photograph an aurora over a waterfall. After waiting for hours under opaque clouds, though, hope was running out. Others left. Then, unexpectedly, the clouds moved away. Suddenly, particles from a large solar magnetic storm were visible impacting the Earth's upper atmosphere with full effect. The night sky filled with colors and motion in a thrilling auroral display. Struggling to steady the camera from high Earthly winds, the 34 exposures that compose the featured image were taken. The resulting featured composite image shows the photogenic Godafoss (Goðafoss) waterfall in northern Iceland in front of a very active aurora in late February. The solar surface explosion that expelled the energetic particles occurred a few days before. Our Sun is showing an impressive amount of surface activity as it approaches solar maximum, indicating that more impressive auroras are likely to appear in Earth's northern and southern sky over the next few years.

<< Previous APOD This Day in APOD Next APOD >>

User avatar
johnnydeep
Commodore
Posts: 2711
Joined: Sun Feb 20, 2011 8:57 pm

Re: APOD: Aurora over Icelandic Waterfall (2023 Jul 04)

Post by johnnydeep » Tue Jul 04, 2023 6:59 pm

Fireworks in the sky - how appropriate for America's Independence Day! (Though this image is from February 27 in Iceland...)
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

User avatar
orin stepanek
Plutopian
Posts: 8200
Joined: Wed Jul 27, 2005 3:41 pm
Location: Nebraska

Re: APOD: Aurora over Icelandic Waterfall (2023 Jul 04)

Post by orin stepanek » Tue Jul 04, 2023 7:49 pm

WaterfallAurora_Letelier_960.jpg
I find the lake looks as though it is in a hole' I must be
looking at it wrong!
Happy_Cat_Smiling.jpg
Happy kitty!
You do not have the required permissions to view the files attached to this post.
Orin

Smile today; tomorrow's another day!

User avatar
VictorBorun
Captain
Posts: 1025
Joined: Fri Oct 16, 2020 10:25 pm

Re: APOD: Aurora over Icelandic Waterfall (2023 Jul 04)

Post by VictorBorun » Wed Jul 05, 2023 5:28 pm

I struggle to understand the description.
the 34 exposures were all in one minute at night?
The blue sky is night sky scattering low Moon's light?

User avatar
Chris Peterson
Abominable Snowman
Posts: 18049
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Aurora over Icelandic Waterfall (2023 Jul 04)

Post by Chris Peterson » Wed Jul 05, 2023 5:39 pm

VictorBorun wrote: Wed Jul 05, 2023 5:28 pm I struggle to understand the description.
the 34 exposures were all in one minute at night?
The blue sky is night sky scattering low Moon's light?
Sounds like it was actually a panorama made from 31 2-second exposures. So yeah, about a minute. And a 2-second exposure at ISO 6400 and a fast lens will certainly capture blue sky if there's a 50% Moon.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com