APOD: Lapland Northern Lights (2016 Apr 08)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 4471
Joined: Fri Dec 04, 2009 3:27 am

APOD: Lapland Northern Lights (2016 Apr 08)

Post by APOD Robot » Fri Apr 08, 2016 4:08 am

Image Lapland Northern Lights

Explanation: Early spring in the northern hemisphere is good season for aurora hunters. Near an equinox Earth's magnetic field is oriented to favor interactions with the solar wind that trigger the alluring glow of the northern lights. On March 28/29 the skies over Kaunispää Hill, Lapland, Finland did not disappoint. That night's expansive auroral curtains are captured in this striking panoramic view that covers a full 360 degrees. Local skywatchers were mesmerized by bright displays lasted throughout the dark hours, shimmering with colors easily visible to the naked eye.

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

Boomer12k
:---[===] *
Posts: 2691
Joined: Sun Apr 22, 2007 12:07 am

Re: APOD: Lapland Northern Lights (2016 Apr 08)

Post by Boomer12k » Fri Apr 08, 2016 9:21 am

A rainbow at night... just spectacular!!

:---[===] *

User avatar
BMAONE23
Commentator Model 1.23
Posts: 4076
Joined: Wed Feb 23, 2005 6:55 pm
Location: California

Re: APOD: Lapland Northern Lights (2016 Apr 08)

Post by BMAONE23 » Fri Apr 08, 2016 5:10 pm

Would be fantastic to see these all these APOD 360deg panoramas have a display option for a Google 360 view where you could just grab and pan the images

User avatar
Fred the Cat
Theoretic Apothekitty
Posts: 749
Joined: Mon Feb 22, 2016 4:09 pm
AKA: Ron
Location: Eagle, Idaho

Re: APOD: Lapland Northern Lights (2016 Apr 08)

Post by Fred the Cat » Fri Apr 08, 2016 9:26 pm

I suspect cameras can improve the seeing of color but how much is lost in viewing color with the naked eyes compared to a telescope? Maybe I'll try the lesson then investigate adding this gadget onto my telescope which claims to "bring stunning views of the night sky to a screen in just seconds".

Anyone know how they differ in general from other CCD cameras especially with respect to the need for sophisticated tracking devices?
Freddy's Felicity "Only ascertain as a cat box survivor"

User avatar
Chris Peterson
Abominable Snowman
Posts: 16205
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Lapland Northern Lights (2016 Apr 08)

Post by Chris Peterson » Fri Apr 08, 2016 10:04 pm

Fred the Cat wrote:I suspect cameras can improve the seeing of color but how much is lost in viewing color with the naked eyes compared to a telescope? Maybe I'll try the lesson then investigate adding this gadget onto my telescope which claims to "bring stunning views of the night sky to a screen in just seconds".
Any CCD camera attached to a telescope will show you more with a couple of seconds of exposure than you can ever see with your eye through an eyepiece. A telescope can't make anything brighter than you see without using a telescope at all, and won't allow you to see color you can't see with the naked eye.
Anyone know how they differ in general from other CCD cameras especially with respect to the need for sophisticated tracking devices?
They are uncooled, and therefore only useful for short exposures (a few seconds or less). Their interface is adapted to video, that is, the rapid production of sequential frames. That's good for transient events, it's good for brighter objects where you can stack images or search for sharper ones. It also means you need no guiding, and only so-so tracking quality.
Chris

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

heehaw

Re: APOD: Lapland Northern Lights (2016 Apr 08)

Post by heehaw » Fri Apr 08, 2016 10:35 pm

What did ancient peoples (Greeks, etc.) think about Northern Lights? Is there any record?

User avatar
geckzilla
Ocular Digitator
Posts: 9158
Joined: Wed Sep 12, 2007 12:42 pm
Location: Modesto, CA

Re: APOD: Lapland Northern Lights (2016 Apr 08)

Post by geckzilla » Fri Apr 08, 2016 10:45 pm

heehaw wrote:What did ancient peoples (Greeks, etc.) think about Northern Lights? Is there any record?
Apparently not much, but they may have thought of them as bad omens.
http://astrogeo.oxfordjournals.org/cont ... /6.15.full
Just call me "geck" because "zilla" is like a last name.

User avatar
neufer
Vacationer at Tralfamadore
Posts: 18547
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: APOD: Lapland Northern Lights (2016 Apr 08)

Post by neufer » Sat Apr 09, 2016 2:32 am

geckzilla wrote:
heehaw wrote:
What did ancient peoples (Greeks, etc.) think about Northern Lights? Is there any record?
Apparently not much, but they may have thought of them as bad omens.
http://astrogeo.oxfordjournals.org/cont ... /6.15.full
http://www.athropolis.com/arctic-facts/fact-aristotle.htm wrote:
Click to play embedded YouTube video.
<<In his book "Meteorology", written over 2,350 years ago, Aristotle (384-322 BCE) described [the Northern Lights] as a light which resembled the flames of burning gas. If these flames spread and at the same time sent out sparks and rays, they were called "jumping goats". The ancient Greek scholar observed: "Sometimes on a fine night we see a variety of appearances that form in the sky: 'chasms' for instance and 'trenches' and blood-red colors... For a weak light shining through a dense air, and the air when it acts as a mirror, will cause all kinds of colors to appear, but especially crimson and purple. 'Chasms' get their appearance of depth from light breaking out of a dark blue or black mass of air. When the process of condensation goes further in such a case we often find 'torches' ejected. When the 'chasm' contracts it presents the appearance of a 'trench'."
Art Neuendorffer