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jaybird
11-08-2004, 10:57 PM
This may be an Even question, seem you have your head in the stars http://bbs.homeshopmachinist.net//tongue.gif, or whoever.

Last night I was looking at the northern lights and at one point the rays seemed to converge into a center then extend into the southern skies when I was looking straight up. Is this because of the curvature of the atmosphere or something else?

J

[This message has been edited by jaybird (edited 11-08-2004).]

Mike Burdick
11-08-2004, 11:55 PM
An interesting link about them:

http://www.northern-lights.no/

Evan
11-08-2004, 11:59 PM
J,

Almost anything is possible, rays, curtains, spikes eyc. The are certainly perspective effects at work.

x39
11-09-2004, 12:17 AM
I've been keeping an eye out for them here in Maine, no sign of them tonight. I lived in Fairbanks, AK for a short while in the seventies and saw some unbelievably brilliant displays there.

Evan
11-09-2004, 02:40 AM
The aurora are classed according to brightness, among other things. This one I photographed in 1986. It is known as a "flare". It was bright enough to cast a shadow.

http://vts.bc.ca/astrophoto/astra/flare.jpg

Gary Westfall
11-09-2004, 02:50 AM
Been a long time since I saw the northern lights - Limestone, Maine about 34 years ago. Multicolor curtains reaching down from a black sky. Totally Awesome! Looked a little like one of those paintings on black velvet.

Boomer
11-09-2004, 07:50 PM
This site indicates where they can be see at any given time....

http://www.sec.noaa.gov/pmap/

This one has many thumbnails that can be enlarged along with much information.

http://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search?aurora

Evan
11-09-2004, 08:18 PM
And this one gives a forecast for your area.

http://www.gi.alaska.edu/aurora_predict/worldmap6.html

x39
11-10-2004, 12:03 AM
We had a nice if somewhat subdued display tonight, shades of red and light green. Nothing says "Boreal forest" like a spruce tree silhouetted by the northern lights.

Betterhalf
11-10-2004, 12:47 AM
Evan is out right now trying for more pic's I am sure you will either see results or hear about it. Hope some of you are getting a good show tonight. Alberta is just talked to Woman they are out in yard looking at them there.

Evan
11-10-2004, 01:37 AM
Very dim tonight but the new camera really brings them out.

http://vts.bc.ca/pics/au041109a.jpg