Monday, 13 November 2006

Lunar display in Switzerland



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.

12 comments:

  1. Beautiful! Is that 9° halo or artefact?

    ReplyDelete
  2. 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.

    Mark

    ReplyDelete
  3. 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.

    ReplyDelete
  4. Michael, you are right. Sorry, I mixed it up. I will correct it in the blog.


    Mark

    ReplyDelete
  5. Thats OK Mark I make mistakes too even I am not perfect.

    ReplyDelete
  6. moon infralaterál on prag
    http://ukazy.astro.cz/upload/20061108LukasShrbeny_Halo.jpg

    ReplyDelete
  7. my 9halo-7.11.06
    http://www.ian.cz/detart_fr.php?id=2022

    ReplyDelete
  8. Seems like 9 halo, but can't be sure. Martin has the same thing.

    The Bates Motel on the left looks great.

    ReplyDelete
  9. foto infralaterál on moon-lukas shrbený.parhelic circle:
    http://ukazy.astro.cz/upload/20061108LukasShrbeny_Phc.jpg

    ReplyDelete
  10. 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.

    ReplyDelete
  11. 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.

    Mark

    ReplyDelete