On Nov/11/2006 I observed a nice high moon halo display in Switzerland. Visible was a bright circumscribed halo and a infralateral or circumhorizon arc.
I am not sure. I didn't noticed a 9° halo visually. However it is on all photos ( http://www.meteoros.de/php/viewtopic.php?t=4711 ). I used a Nikon D70 and Peleng 8mm lens. It was at 3:42 UTC in the moring and I found nothing to block the moon. Full moon was 6 days before.
Supralateral? Supralateral forms when sun is at 32 degrees or below the colored arc under the 22/circumscribed halos is either circumhorizon arc or infralateral arc.
Am I the only one wondering why the bottom of the halo is so much better defined than the top? Mark, was that typical throughout the display? And how long did the display last? Thanks.
Dear Walt, I took the photos from 3:36 to 3:48 UTC. The bottom is better defined on all images during this 12 minute time periode. Then the whole display started fading out from the top of the halo. The clouds moved from NNW to SSE.
Beautiful! Is that 9° halo or artefact?
ReplyDeleteI am not sure. I didn't noticed a 9° halo visually. However it is on all photos ( http://www.meteoros.de/php/viewtopic.php?t=4711 ). I used a Nikon D70 and Peleng 8mm lens. It was at 3:42 UTC in the moring and I found nothing to block the moon. Full moon was 6 days before.
ReplyDeleteMark
Supralateral? Supralateral forms when sun is at 32 degrees or below the colored arc under the 22/circumscribed halos is either circumhorizon arc or infralateral arc.
ReplyDeleteMichael, you are right. Sorry, I mixed it up. I will correct it in the blog.
ReplyDeleteMark
Thats OK Mark I make mistakes too even I am not perfect.
ReplyDeletemoon infralaterál on prag
ReplyDeletehttp://ukazy.astro.cz/upload/20061108LukasShrbeny_Halo.jpg
Seems like 9 halo, but can't be sure. Martin has the same thing.
ReplyDeleteThe Bates Motel on the left looks great.
Nice photos, Martin!
ReplyDeleteAm I the only one wondering why the bottom of the halo is so much better defined than the top? Mark, was that typical throughout the display? And how long did the display last? Thanks.
ReplyDeleteDear Walt,
ReplyDeleteI took the photos from 3:36 to 3:48 UTC. The bottom is better defined on all images during this 12 minute time periode. Then the whole display started fading out from the top of the halo. The clouds moved from NNW to SSE.
Mark