|Sprinkler Bow ~
Imaged by Thomas Abbott at the Paardefontein National Antenna Test Range in South Africa. The sun was 56° high putting the top of the 42° radius bow well below the horizon.
All images ©Thomas Abbott, shown with permission
|Sprinkler bows, like rainbows, are at infinity even though the droplets are nearby. Move your head and they move with the sun and stars.
If the sprinkler drops are a similar size to raindrops then the bow are indistinguishable from a rainbow except perhaps for the flash and sparkle of very close drops.
Sprinklers, though, can provide a rather wider ranger of droplet sizes than ordinary rain. They can have huge unstable drops down to those in a fine mist. Smaller drops give wider and more pastel coloured bows. Those from a sprinkler mist can resemble fogbows.