Weak diamond dust in Ostrava(Czech republic)

[Matej Grek]

Hey all! .

On December 4th and 5th there was some few weak halos in Ostrava. I observed circumzenithal arc and parhelions. Here are some photos :

4.12.2010 - weak CZA



5.12.2010(today) - weak PHA





Have a nice day!;)

Matěj Grék

[Bertram Radelow]

hello Matěj,

welcome to the club...

Nice pics you posted - I like the very faint but near haloes very much.

Bertram

[Elmar Schmidt]

Ahoj Matěj!

I like your delicate photos.

But what is a PHA? Is it elongated sundogs like these bright ones here?

http://www.atoptics.co.uk/halo/dogim4.htm

Greetings Elmar

[Heiko Ulbricht]

Ahoj Matěj,

Vítejte na fóru! Krásné obrázky na cenu!

Pozdravy ze Saska,
Heiko

[Udo Hennig]

Ahoj Matěj,

Zde ve fóru, krásný "circumzenithal arc" je vítáno.

Pozdravy z Radeberg, Udo.

[Matej Grek]

Thank you all! I have a very good feeling about the community here .

[Matej Grek]

Ahoj Matěj!

I like your delicate photos.

But what is a PHA? Is it elongated sundogs like these bright ones here?

http://www.atoptics.co.uk/halo/dogim4.htm

Greetings Elmar

By PHA i ment parhelion, sorry for bad grammar.

[Elmar Schmidt]

Ahoj again Matěj,

re: PHA. Thanks for the clarification. I knew you couldn't have meant the parhelic arc. Still, your parhelia are peculiar in a way, because of their large vertical extent, which is a consequence of wobbling plate crystals. There is also an analogy of this for subparhelia.

Hopefully we can meet one of these days at a meeting. It is also discussed in AKM to maybe later revitalize the European halo meetings.

There are quite a few halo experts in Czechia who have logged quite a few phenomena in the mountains,

Do you have contact with any of these folks?

Greetings

Elmar

[Matej Grek]

Ahoj again Matěj,

re: PHA. Thanks for the clarification. I knew you couldn't have meant the parhelic arc. Still, your parhelia are peculiar in a way, because of their large vertical extent, which is a consequence of wobbling plate crystals. There is also an analogy of this for subparhelia.

Hopefully we can meet one of these days at a meeting. It is also discussed in AKM to maybe later revitalize the European halo meetings.

There are quite a few halo experts in Czechia who have logged quite a few phenomena in the mountains,

Do you have contact with any of these folks?

Greetings

Elmar

To be honest i don't know or i don't have contact for those who logged phenomena in the mountains. But I'll try to get something .