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by ah-glow
Thu Jan 22, 2009 12:46 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Unusual Light Pillars Over Latvia (2009 Jan 12)
Replies: 176
Views: 190820

Re: Unusual Light Pillars Over Latvia (2009 January 12)

I noticed the icing on the trees, and the sodium vapor image had a purple diagonal line radiating up-left from the bottom (source?). Even if the lamps were coated with ice, most lamps have some sort of structure blocking the direct upward projection of the light, so therefore, I believe the light is...