Atmospheric Optics Effects: 22 halo

Showing posts with label 22 halo. Show all posts

July 17, 2011

22 degree halo

15.7.2011

Not a very bright halo that last all day long. Thanks to fast moving halo clouds stacking 47 frames over 6 minutes period makes all the difference though.

Later in the evening a nice CZA arc and strong low sun 22° halo. At this time I was about to roll the wheels to find a great shooting spot but then I realized it equailizes chasing a ghost as the low cloud front was about to approach to stay for the rest of the evening and through the night.

April 22, 2011

Spring halo display

17.4.2011

A really nice springtime halo. Those who are not in front of office monitors may notice a faint 9° halo as well.
44 frames. A sample of single frame is available here.

November 8, 2010

Autumn Solar Halos

08.11.2010

123 image stack.

100 image stack.

A single frame.

October 9, 2010

Autumn halo display

08.10.2010

Here's a random shot during the event, not very impressive though, rest of the shots were more or less the same but sufficient enough to stack.

Forgot to mention that the image above consists of 113 frames stacked together with help of a Registax software.

August 17, 2010

Bright 22 halo

07.6.2010 (17:18 - 17:38 GMT +2, 42 frames)

For this simulation the main contributor are randomly oriented short-shaped column crystals. Minimum amount of plates were used for parhelias and for weak CZA. Long-shaped columns were used for weak tangent arc and for upper suncave Parry arc, the latter shows up faintly on the stacked photograph.
It's worth to mention that in case when randomly oriented long-shaped columns were used the 22 halo bocame very diffuse so shorter columns were needed. The software used for simulating this display is Halopoint 2.0 by Jukka Ruoskanen.