Visibility IV / V
This play is of the same type as the September play I observed in 2012 (see http://www.taivaanvahti.fi/observations/show/8118), although the overall intensity level of this play was lower.
I noticed the play when I left work. The first impression didn’t promise much, even though the overhead was pretty bright. During my two-mile walk, I saw a lonely 120-degree side sun, and in addition, above the overhead side, a faint Parry arc was visible, yet only short periods at a time. When I got home, I tuned in to the backyard of Pentax’s house to take a series of pictures, after which I sat down at my wife’s dinner table. Later, I took a few more series of pictures. In addition to the rarities already mentioned, I cannot claim to have seen anything else worth mentioning in the observation situation.
Since then, the play has been revealed to be an actual cornucopia when I put individual images in a stack and apply rather heavy image processing. The best pieces are now on display here. All stacks are made with Panu Lahtinen's halostack program.
Figure 1:30 depicts from 18:00 to 18:05. Blurred mask applied both before and after stacking.
Figure 2: Same stack as in Figure 1, but the blurred mask is applied only before stacking. After stacking applied a rather fashionable SMP method.
Figure 3: Computer simulation corresponding to Figures 1 and 2, made with Jukka Ruoskanen's Halopoint program.
Figure 4: Like Figure 2, but there are now 30 images in the stack from 18:15 to 18:20.
Figure 5: Like Figure 1, but there are 20 images in the stack from 18: 31-18: 35.
Figure 6: Like Figures 1 and 5, but the stack has 30 images from 18:47 to 18:52.
The last two images are moderately processed individual frames that I hope depict the visual side of the play a little more realistically than the stack images. The last image has not been treated with a blurred mask either.
What we see in the pictures then probably depends on the seer, but in my opinion at least the upper concave Parry and the upper Arch of Lowitz are undeniably involved. Pretty sure, the solar arc and the upper tape arc are also included. The upper convex Parry's arc doesn't bounce out in itself, but I think that's also included in the fifth picture. In my own eyes, the second and third pictures would have hints even of Kern's arch! Of course, the latter may be mainly wishful thinking ...
Link to images by Nicholas Lefaudeux: https://plus.google.com/photos/108384183727291301578/albums/6142665685504935665?banner=pwa