Visibility IV / V
After all, those ellipses finally hit the spot after a few years of waiting. The camera was already on the tripod when I noticed the ellipses in the sky. A quick shot at the camera and stacks of fire. A total of 241 images were collected over a period of 17 minutes. At first, the cover-up was a bit like hurting when you had to recover from a quick situation. As the show luckily continued, I got my cover in a more sensible position. I compiled a few timelaps and a composite image of the images taken from a small radius. Images are cropped in different ways, the original image size is shown in the video in Figure 7. The originals have been aligned and straightened. When watching videos, it is a good idea to cover the mobile cover with your own finger, for example.
Attention is drawn in the figures to the fact that the ellipse is not symmetrical but expands clearly downwards. Also, the radius of the ellipse varies rapidly and at times the ellipse was double. The size variation stands out best in the very last stacks. Pretty mystical.
Figure 1. Stacks of 30 images from 9:27 to 9:37 (3xusm). Pictures of the stacks are taken every 4 seconds.
Figure 2. The previous bg version.
Figure 3. Stacks of 20 images from the early stages from 9:21 to 9:29 (2xusm, 50% resolution).
Figure 4. Timelapse of all valid stacks of 20 images from 9:21 to 9:37 (50% resolution).
Figure 5. Timelapse of 30 image stacks from 9:27 to 9:37. Includes stacks of Figure 1 lighter when stacked.
Figure 6. Every second image from the previous timelapse twice, the variation of the radius of the ellipse is clearly different.
Figure 7. Cloud animation 9: 09-9: 22. A 6-minute snippet is missing from the point where the elliptical halves appeared. Unprocessed images.