Visibility IV / V
Pizza halo. Even before eight in the morning, the sun on the left side could be seen in the sky among the clouds. I started my laziness with the camera only when the basic ring started to stand out. I first took a few test photos with the 18-55 mm kit lens I bought online for a couple of dozen, but I immediately switched back to the basic tool Samyang's 8-millimeter after noticing the zyk in the sky as well. The situation didn't look miraculous, so I left the camera to just shoot a stack of 60 pictures. The sky clouded over shortly after that.
Instead, a surprise was found in the stacks. Single arc between 22 and 46 degree tires. Identifying it caused a headache, because only a small clearing on the base ring could be seen from the upper side opening towards Parry, and the other pyramidal halos referring to the 23 degree parhelia were not recognizably distinguished either. I sent the pictures to Riikone for evaluation with the note that the arch must be Parry. Marko answered that Parry can't be like that, you have to measure. At the same time, he also suggested betting on pizza that the arc is 23 slaika. Well, I had to take the offer and I sent star pictures for measurements.
At the Sun's altitude of 18.5 degrees, the distance between Parry and Parhelia at 23 degrees is only 0.6 degrees. Figure 6 shows the results of Marko's measurements. The final result is by no means clear when the distance is so small, but the scale seems to lean more towards Parry (i.e. the upper point that marks the slope (30.0°) is a little too high in relation to the curve). Maybe this is going to be pizza. Or what do you think?
Figure 1. Stack of 5 images at 8:15-8:17 (2xusm, bg, 18 mm focal length)
Figure 2. Previous without bg processing.
Figure 3. Stack of 90 images at 8:22-8:31 (3xusm).
Figure 4. The bg version of the previous one.
Figure 5. The first image of the stack without processing.
Figure 6. Measurements from the version of Figure 4.