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.

Looking back at spring optics in images

Images taken between March 2011 and May 2011.

13.3.2011

 

81 image stack.

 

18.3.2011

101 image stack.

 

 

23.3.2011

53 image stack.

 

27.3.2011

 

 

14.4.2011

Looking back at winter in images

Images taken between November 2010 and February 2011.
30.11.2010

 

13.12.2010

 

 

18.12.2010

 

30.1.2011

 

06.2.2011

 

10.2.2011

 

 

11.2.2011

 

 

15.2.2011

 

 

A faint CZA in diamond dust.

 

16.2.2011

A middle Lowitz arc crossing the parhelia.

 

Here's a beautiful CZA and supralatreal arc.

 

59 image stack reveals 22° halo, parhelias and CZA.

 

130 image stack over 25 minutes period. Notice the lack of column crystals, mostly plates.

 

17.2.2011

In this night the cold took my nose and toes. It was rather cold night at -25°C plus the windchill which added an extra -5°.

 

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.

Autumn Solar Halos

08.11.2010

123 image stack.

 

100 image stack.

A single frame.

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.
 

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.

Single frame vs. 42 frames stack comparison

 

This was one amazing summer display, the sun was low but halo is still full.

 

47 image stack.

23 parhelia

16.8.2010

90 image stack.

 

Solid 23 parhelia

24.6.2010

37 image stack.

Halo display

17.6.2010

51 image stack.

19 image stack.

17 image stack.

Can you spot the infralatereal arc ?

22 halo in the morning

21.4.2010

30 image stack.



Pyramidial display

08.5.2008

10 image stack.

Multidisplay

08.6.2010

On imag above the separation between the CZA and 46° halo is visible particularly well. The sun elevation is 28.9-27.6°.

After enhanceing the image in Photoshop the supralatereal arc becomes visible as well. Note: there is also an infralatereal arc on the right side.

 

Here the sun elevation is 21.5-19.6°. 22° halo still remains strong and tangent arcs are clearly fainer than 22° halo. My vote goes to 46° halo.

Strong 22 halo

03.6.2010

What a nice morning treat !

Had some hard time blending the stack and single frame into one and not loosing the lower part of the 22° halo during the process.