Photo date: May 31, 2019. Photographer: Mark Mahin.
The photo below shows a mysterious orb I photographed indoors.
This is the 10th time I have photographed a mysterious orb with a "backslash" stripe just like this one, stretching from the top left of the orb to the bottom right of the orb. This repeating pattern is one of 27 repeating patterns I have observed in mysterious orbs I have photographed. The visual below shows examples of each of these patterns, and how many occurrences of the patterns I have photographed. You can see many examples of each of these patterns by looking at this post.