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Im Nebel kann eine andere Spielart des Regenbogens beobachtet werden: Der Nebelbogen. Dieser Bogen ist weiß und sein Band ist etwa doppelt so breit wie bei einem normalen Regenbogen. An der Innenseite liegen manchmal noch Interferenzbögen. Sein Radius beträgt 42°, wird aber mit abnehmender Tröpfchengröße kleiner. Nebel besteht aus sehr kleinen Wassertröpfchen. Bei Tröpfchen unterhalb von 50 Mikrometern überlagern sich die Regenbogenwinkel der einzelnen Spektralfarben so, daß sie zusammen weißes Licht ergeben. Wenn die Tröpfchen kleiner als 5 Mikrometer sind, ist der Nebelbogen nicht mehr erkennbar, da der Bogen dann sehr diffus und lichtschwach wird. Deshalb ist der Nebelbogen nicht immer sichtbar, wenn die Sonne auf eine Nebelwand scheint. (aus Arbeitskreis Meteore e.V.)
Another type of rainbow can be observed in fog: the fog bow. This bow is white and its band is about twice as wide as that of a normal rainbow. Sometimes there are interference bows on the inside. Its radius is 42°, but it gets smaller as the droplet size decreases. Fog consists of very small water droplets. For droplets smaller than 50 micrometers, the rainbow angles of the individual spectral colors overlap so that together they produce white light. If the droplets are smaller than 5 micrometers, the fog bow is no longer visible because the bow then becomes very diffuse and faint. This is why the fog bow is not always visible when the sun shines on a wall of fog.
I ventured down to Rannoch Moor recent to photograph this lovely lonely tree in the mist when all of a sudden this unbelievable fogbow appeared. It is a colourless rainbow that is made up of tiny water droplets that cause fog. It's an amazing thing to witness and can generally only be seen if the sun is behind you when you are looking at it.
As soon as I saw this wonderful isolated windswept tree, I knew that it had to be framed by the fog bow. Freshly fallen snow set the scene all around. It was just beyond magical and one of those days that you'll remember for a long time to come.
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Yesterday's shot showed some heavy ground fog over a ditch and field. Just beyond that point the road makes a 90* left, and within a mile the fog thinned dramatically (I was farther from the river and the sun was rising to spread its warmth). And then I saw this fogbow.
It was only the 4th fogbow I've photographed. They are much rarer than rainbows. Sometimes called white rainbows or ghost rainbows because their colour is very subtle or absent altogether, fogbows are fairly rare. The water droplets in fog are incredibly tiny, therefore they interact with light via diffraction, and very little colour is refracted (as in a rainbow, where the droplets are much larger).
Most fogbows exist only briefly, but this one was visible in the morning sky for more than an hour. I will post one more shot of it later today - a rare double posting for me, but I did miss a day last week - and then move on to different weather phenomena as the week goes on. Summer is the time for dramatic weather on the northern prairie...
Photographed on the outskirts of Val Marie, Saskatchewan (Canada). Don't use this image on websites, blogs, or other media without explicit permission ©2025 James R. Page - all rights reserved.
As promised, another look at the fogbow, this time arcing into a herd of cows (Black Angus, to be specific). The cows were very interested in me, no doubt associating humans with food; they probably can't tell us humans apart. Much like we view them :-)
Meanwhile, this unusual weather phenomenon persisted, and I kept stopping to shoot it. Who knows when I'll see another one. See previous posting for a shot of the entire arc.
Tomorrow: dramatic summer weather continues..
Photographed near Val Marie, Saskatchewan (Canada). Don't use this image on websites, blogs, or other media without explicit permission ©2025 James R. Page - all rights reserved.
Well who would have thought eh, I only got the moth trap out as a little Fathers Day/Dave memorial, and now I am completely hooked! It's like Christmas every time, you never know what's going to be in there. It was hard getting out of bed early enough to beat the sparrows this morning, but seeing two Privet Hawk-moths peeking out at me made it all worthwhile. They are huge! One flew off, straight towards a sparrow, which ducked!
Here's one from yesterday, an Elephant Hawk. HMS!
I watched this ghostly arc form over the course of 20 minutes while having morning coffee on the deck of the cottage that I was staying at on Deer Isle, Maine. We have been socked-in with fog all week but the sun was burning through on this morning. What started out as a bright white wall of fog evolved into a shallow arc that spanned across the cove as the sun came over the trees. A quick internet search confirmed that I had witnessed my first fogbow!
A new version of this storm photo. When first posting I eliminated some of the white streaking of the large falling raindrops. I also thought that the white curve to the left was an optical creation of the lens. Now I can only think it is a "white rainbow" created by the angle and the size of the raindrops...
In the course of the evening a real natural phenomenon appeared here in the field, which made me very happy. The emerging fog slowly becomes denser and the opposite moon creates a fog bow behind my favorite trees.
A Rare whitebow or fog bow in a field just outside Penryn, Cornwall
Stunning to look at and damn difficult to capture
This 15 second exposure made sure i had enough light coming in through my 10 stop whilst ensuring the fog which was pretty thick was not blowing the highlights
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My first time seeing this rare and unique weather formation. A little hard to focus on......
Another shot below after the sunrise lit it up and just before it dissipated.
A fogbow, sometimes called a white rainbow or ghost rainbow, is a similar phenomenon to a rainbow; however, as its name suggests, it appears as a bow in fog rather than rain.
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When the sun is behind the head of a viewer looking towards a bank of fog, a fog bow (white rainbow, sea-dog) can appear. It is similar to a rainbow but appears in fog rather than rain. Because of the very small water droplets in fog the fog bow is white due to the diffraction and smearing of the colours. Davis Strait, West Greenland, NW Passage.
113/09/2023 www.allenfotowild.com
White Rainbow hypnotized the crowd Proper Eats at the first (annual??) St. John's No. Fest on Saturday, June 21st, 2008.
While photographing White Sands this week, we found a blanket of fog laying over the dunes. As the sun rose and the fog lifted, a magnificent fog bow appeared. Similar to a rain bow (and sometimes called a white rainbow), a fog bow has weak or no color due to the small size of fog droplets.
A moonbow (also known as a lunar rainbow, black rainbow, white rainbow, lunar bow, or space rainbow) is a rainbow produced by light reflected off the surface of the moon (rather than from direct sunlight) refracting off of moisture in the air. Moonbows are relatively faint, due to the smaller amount of light reflected from the surface of the moon. They are always in the opposite part of the sky from the moon.
Because the light is usually too faint to excite the cone color receptors in human eyes, it is difficult for the human eye to discern colors in a moonbow. As a result, they often appear to be white.[1] However, the colors in a moonbow do appear in long exposure photographs. Source: en.wikipedia.org/wiki/Moonbow
Morro Strand State Beach, Morro Bay, California
A fogbow "is a similar phenomenon to a rainbow; however, as its name suggests, it appears as a bow in fog rather than rain. Because of the very small size of water droplets that cause fog . . . the fog bow has only very weak colors, with a red outer edge and bluish inner edge. . . .In many cases, when the droplets are very small, fog bows appear white, and are therefore sometimes called white rainbows."--Wikipedia
Note that this fogbow did form a typical rainbow semicircle arc, but I chose this photo of the partial fogbow because of the highlighted curlew in the foreground and the ripples in the sand/water at lower left.
Several minutes later the fog totally engulfed us.
Fog Bow Spectacular
Latrigg on Monday with the cloud inversion..a little bit of interesting weather with our shadows and the fog bow or white rainbow as its sometimes called.
Latrigg, Keswick, Cumbria
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Norway - Skien - A fog bow, sometimes called a white rainbow, is a similar phenomenon to a rainbow; however, as its name suggests, it appears as a bow in fog rather than rain.Because of the very small size of water droplets that cause fog—smaller than 0.05 millimeters (0.0020 in)—the fog bow has only very weak colors, with a red outer edge and bluish inner edge.
In many cases, when the droplets are very small, fog bows appear white, and are therefore sometimes called white rainbows. (Wikipedia)
While on holiday I decided to attempt to photograph a few sunrises for a change although it’s not my forte.
I started off in a small patch of straight pines in thick fog and no light. Then I soon decided to drive onwards towards Princetown seeing some amazing atmospheric scenes in a short space of time. Unable to pull over I missed some great photograph opportunities. It’s amazing how local the mist was driving straight into clear skies in a few hundred metres. I turned the car around with the sun behind me chasing the mist then I noticed the ‘White Rainbow’ which was a first for me. The tiny water droplets in mist and fog are not big enough to create colour like a rainbow. I swiftly parked the car on a grass verge and took a few shots. There was no foreground interest apart from a small stream; in the distance was a loan tree but I was unable to get to it with a boggy marsh all around me. So my option was to take this photo where I was stood.
This image has been highly commended and included within the Landscape Phototgrapher of the Year 2012 and included within the awards book.
As the morning sea mist was intermittently lifting a strange phenomenon was being experienced. The nav-aid appeared to be engulfed within a mist dome protecting it, this happened on a couple of occasions as the sun tried to burn through the thick sea mist before eventually engulfing the area with visibility down to about 50 foot.
Animation of this event can be viewed at: www.flickr.com/photos/79387036@N07/28819483792/in/datepos...
What makes this particular rainbow odd is that for a few minutes, a large part of it turned or faded to white. While white rainbows are common with full moons, this is this first time I've seen a white one with the sun.
This is a 'blue sky' rainbow. These are unusual. Large raindrops are somewhere between you and the bow backed by blue sky rather than the usual grey cloud.
More on rainbows: www.atoptics.co.uk/bows.htm
From 8.30am until 15.00 I was in awe of witnessing multiple spectacular white rainbows.
Over walls, arching over trees, across roads, over tors, above a fox hunt, behind ponies, arraying from hawthorns and beaming onto man.
This was one of those otherworldly fogbows arching over a little Hawthorn Tree.
#landscapephotograpy #fogbow #whiterainbow#rarephenomenon #mavenmagneticfilters #mavenfilters #dartmoornationalpark #winter #mistymorning #mystical #trees #ethereal
North Point,
Morro Strand State Beach,
Morro Bay, California
A fog bow or white rainbow is, like a rainbow, due to sunlight off small drops of moisture. Only in this case, the droplets are much smaller than raindrops. There may be a slight reddish color on the outer part of a fog bow and a slight bluish color on the inside, very faintly visible here after only slight adjustments in processing.
As I had been driving toward this spot, I could see a sort of amorphous lighter area in the fog while I was wearing polarized sunglasses. I was intrigued as I got near this spot and watched as it changed with differing permutations of fog and sunlight. Gradually it evolved to this distinct bow, but the fog was increasing and the bow lasted intact only about a minute.
This photo was taken on the Oregon coast. When all the conditions are right, you'll see a fog bow over the ocean.
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I hit this wall of mist at the head of the Holme Valley and drove back to the edge. The green road leads the eye to the bottom of a "fogbow" or white rainbow.
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Just after 1am in the middle of the night (returning from photographing the green sea turtles laying their eggs in the dunes) I noticed some geometrical formation in the sky on Fraser Island. I quickly stopped the car and turned off the light. It was then that I realised I am witnessing the rare event....a rainbow at night. Hurry up, get a shot or two....that's all I was thinking. Didn't even have the time to turn around the car for a Toyota promo shot...lol. It all happened so quickly.
The wind picked up and I had to use my umbrella (Mushroom in the foreground) to protect my gear from the rain drops that were already flying horizontally. Not a high quality shot that you see here but hey..consider the circumstances. Have you ever seen a full moonbow at night? I thought this was pretty special and many people probably haven't even seen a moonbow before. You can see the moon is behind me and at the bottom you see the shadow of my umbrella. The moonbow lasted only a few minutes...time enough to quickly setup the tripod, umbrella and compose this shot.
From Wikipedia:
A moonbow (also known as a lunar rainbow, lunar bow or white rainbow) is a rainbow produced by the moon rather than the sun. Moonbows are relatively faint, due to the smaller amount of light from the Moon. They are always in the opposite part of the sky from the moon.
It is difficult for the human eye to discern colours in a moonbow because the light is usually too faint to excite the cone colour receptors in human eyes. As a result, they often appear to be white.[1] However, the colours in a moonbow do appear in long exposure photographs.
A coloured circle around the moon is not a moonbow—it is usually a 22° halo produced by refraction through hexagonal ice crystals in cirrus cloud. Coloured rings close to the moon are a corona, a diffraction phenomenon produced by very small water droplets or ice crystals in clouds.
Moonbows are most easily viewed when the moon is near to full (when it is brightest). For other than those produced by waterfalls, the moon must be low in the sky (less than 42 degrees and preferably lower) and the sky must be dark. And of course there must be rain falling opposite the moon. This combination of requirements makes moonbows much more rare than rainbows produced by the sun.
Featured in Andy Frazer's Night Photography Blog