APOD: Aurora over Clouds (2015 Nov 24)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 3549
Joined: Fri Dec 04, 2009 3:27 am

APOD: Aurora over Clouds (2015 Nov 24)

Post by APOD Robot » Tue Nov 24, 2015 5:07 am

Image Aurora over Clouds

Explanation: Auroras usually occur high above the clouds. The auroral glow is created when fast-moving particles ejected from the Sun impact the Earth's magnetosphere, from which charged particles spiral along the Earth's magnetic field to strike atoms and molecules high in the Earth's atmosphere. An oxygen atom, for example, will glow in the green light commonly emitted by an aurora after being energized by such a collision. The lowest part of an aurora will typically occur at 100 kilometers up, while most clouds usually exist only below about 10 kilometers. The relative heights of clouds and auroras are shown clearly in the featured picture from Dyrholaey, Iceland. There, a determined astrophotographer withstood high winds and initially overcast skies in an attempt to a capture aurora over a picturesque lighthouse, only to take, by chance, the featured picture along the way.

<< Previous APOD This Day in APOD Next APOD >>
[/b]

User avatar
RedFishBlueFish
Science Officer
Posts: 111
Joined: Mon Feb 15, 2010 11:33 am
Location: Texas

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by RedFishBlueFish » Tue Nov 24, 2015 10:42 am

Wonderful image.

Forty years ago I lived in Fairbanks (about the same latitude as Iceland), where aurorae were common and active, however I have never seen such an amazing auroral display.

paulslittlebit
Ensign
Posts: 10
Joined: Sat Aug 29, 2015 12:33 am

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by paulslittlebit » Tue Nov 24, 2015 11:23 am

I have always lived to far south to see auroral display. It is on my bucket list.

Blendersgame

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by Blendersgame » Tue Nov 24, 2015 3:30 pm

Nice work Mr. Boffelli!

starsurfer
Stellar Cartographer
Posts: 3529
Joined: Thu Mar 15, 2012 7:25 pm

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by starsurfer » Tue Nov 24, 2015 6:27 pm

This is very dramatic, like something out of a dream, love it! :D
APOD Robot wrote:There, a determined astrophotographer
I would say he's more of a terrestrial photographer than astrophotographer.

locobonobo
Asternaut
Posts: 4
Joined: Tue Nov 24, 2015 7:44 pm

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by locobonobo » Tue Nov 24, 2015 8:10 pm

I wonder if anyone, like me, zoomed in hoping to get lost in it only to find the detail ran out too soon? Truly awesome; inspirational, even.

User avatar
neufer
Vacationer at Tralfamadore
Posts: 15972
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by neufer » Tue Nov 24, 2015 8:48 pm


locobonobo wrote:
I wonder if anyone, like me, zoomed in hoping to get lost in it only to find the detail ran out too soon? Truly awesome; inspirational, even.
:arrow: I was able to see this guy.
Art Neuendorffer

locobonobo
Asternaut
Posts: 4
Joined: Tue Nov 24, 2015 7:44 pm

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by locobonobo » Tue Nov 24, 2015 9:40 pm

Well, that makes you very lucky, my new mate. I assume it is Dali - a gifted artist who had serious intent and made that beautiful. Sometimes. The beauty of this photo for me, however, is that there is no intent - it just is. It is a good theme for meditation, maybe, if you were that way inclined.

There have been some stunning galactic apods recently, and they are fascinating and glorious and thought provoking. But this picture is human and touching. It is sublime.

locobonobo
Asternaut
Posts: 4
Joined: Tue Nov 24, 2015 7:44 pm

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by locobonobo » Tue Nov 24, 2015 9:48 pm

I meant sub-lime.

Boomer12k
:---[===] *
Posts: 2485
Joined: Sun Apr 22, 2007 12:07 am

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by Boomer12k » Tue Nov 24, 2015 10:53 pm

Some of those clouds look Lenticular...or is that just appearance from a longer exposure?

Really nice display!!

:---(===) *

User avatar
Beyond
500 Gigaderps
Posts: 6889
Joined: Tue Aug 04, 2009 11:09 am
Location: BEYONDER LAND

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by Beyond » Wed Nov 25, 2015 12:07 am

neufer wrote:

locobonobo wrote:
I wonder if anyone, like me, zoomed in hoping to get lost in it only to find the detail ran out too soon? Truly awesome; inspirational, even.
:arrow: I was able to see this guy.
That's nothing new for you, neufer, you're a wiz at finding such things. :yes:
To find the Truth, you must go Beyond.

User avatar
DavidLeodis
Perceptatron
Posts: 1169
Joined: Mon May 01, 2006 1:00 pm

Re: APOD: Aurora over Clouds (2015 Nov 24)

Post by DavidLeodis » Wed Nov 25, 2015 10:59 pm

Boomer12k wrote:Some of those clouds look Lenticular...or is that just appearance from a longer exposure?

Really nice display!!

:---(===) *
Hi Boomer12k :)

In a description with the image in Daniele Boffelli's section in 500px (found through his name link to his Facebook account) it states "One of the most amazing night of my life. Aurora borealis plus lenticular clouds. The house is the lighthouse keeper's house...". I was unable though to find any more information as it seemed that I would need to provide 500px with my details.