Monday, April 28, 2008
I'm Being Followed by a Moon Shadow
The ice crystal filled sky over Iceland put on quite a display a few nights ago. Almost all the atmospheric lights are visible (except a rainbow). There are moon dogs on either side of the moon just at the conjunction of a 22 degree halo and a parahelion circle. There is also an upper tangent arc on top of the halo. Less visible to me are a rare circumzenithal arc and an even rarer supralateral arc.
I don't see those last two but experts assure me they are there and here is a different, slightly enhanced photo with them pointed out. What a lovely planet we inhabit.
(h/t Spaceweather and Agust Gudmundsson)
Labels: Atmospheric light effects