The hole into the luminescent sky
Last Christmas I decided to spend in Oravská Lesná, Slovakia. And I don’t regret. On Dec. 27th, 2013, I tried to observe comet C/2013 R1 Lovejoy. But the sky was still wierdly bright and kind of green. So I changed lenses to find out and suddenly this: maybe the most intensive airglow I have ever…
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