23° upper parhelia 6.7.2012

Observed phenomena: Halo phenomena
Light source: Sun
Origin: High clouds (cirrostratus)
Observed halo forms:

  • 23° upper parhelia

Date: 6.7.2012
Time: 12:47-13:12
Observing place: Turku, Finland
Observing method: Photography
Technical information about photographing equipment: Olympus μ 1030 SW, Canon EOS 1100D, Canon EF-S 18-55mm IS

On 6th of July 2012, I observed a very diffuse -looking halo above the Sun in Turku, Finland. The distance of this halo from the Sun seemed to be close to the distance of 22° upper tangent arc from the Sun, but the halo had very smooth, diffuse appearance and undefined edges unlike the normal 22° upper tangent arc. Finnish halo expert Marko Riikonen was very convinced, that this halo was an upper 23° parhelia caused by pyramide halo crystals. Based on the opinion of Marko Riikonen, I recorded an observation of upper 23° parhelia in my observation log book.

The propable 23° upper parhelia of 6th of July, observed in Turku, Finland
23° upper parhelia of 6th of July, observed in Turku, Finland
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s