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Especially when looking at observations for a particular time period, you may want to do the search based on when the observed phenomenon actually happened instead of the time when it was sent to the observation database. In that case, you may want to select 'Observed' instead of the default 'Sent'. Please note that the browser uses a cookie to remember your choice of the start time of the search. If you have enabled cookies and do not clear them from your browser's cache, the same browser will display observations from the same time window you last selected the next time you use it.
Please note that the browser uses a cookie to remember your choice of the start time of the search. If you have enabled cookies and do not clear them from your browser's cache, the same browser will display observations from the same time window you last selected the next time you use it.
The "Sent" -option retrieves observations submitted to the Skywarden during the selected time period, regardless of when those phenomena were seen in the sky.
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The given text will bee searched from observation titles,descriptions, technical details and identified phenomena
You can search for any persons observations by writing the observer's whole name or part of the name here. For example 'John Smith' or 'John S'
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You can also list multiple locations by separating them with a comma.For example "Mikkeli, Hirvensalmi, Juva, Kangasniemi". In this case, the search will return findings that match the locations listed.
In this field, you can search for more detailed phenomenon identifiers included in the observation details.
Such are, for example, deep space object types such as "spiral galaxy" or "reflection nebula" or halo forms such as "sundog" or "sun pillar".
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By narrowing down the search date limits and typing, for example, "northern lights", you can see all the northern lights seen within a certain time period.
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Handsome fog arch after dense fog. The visibility was a couple of hundred meters before this fog arc, and 47 km soon after the fog arc.
Komea sumukaari tiheän sumun jälkeen. Näkyvyys oli ennen tätä sumukaarta pari sataa metriä, ja pian sumukaaren jälkeen 47 km.
A fogbow (or mistbow) is a mainly pale white arc visible on the opposite the light of the light source. A faint redness may appear on the edges. The phenomenon is visible either in the fog or within a cloud of mist just above the ground.
There is theoretically no clear border between the fog arc and the rainbow, but the rainbow gradually turns into a fog arc as the droplet size decreases. The smaller the droplets, the smaller the radius of the arc, the thicker it is and the more white begins to dominate it.
Usually, making a distinction between a fog arc and a rainbow is easy, but intermediate shapes can sometimes appear. If the main arc has a clear colors of the spectrum and isn't white, it is a rainbow. If, on the other hand, the arc is dominated by white and some of the colors in the spectrum are missing, it can be interpreted as a fogbow.
Two fogbows have been observed - the primary fogbow and the secondary fogbow. Usually only the main fogbow is visible. One or very rarely more interference arcs can sometimes occur inside the main fog arc. They can be more colorful than the main arch.
Fogbows are seen even in frost in winter, as small mist droplets can be in liquid form up to -40 ° C.
From time to time, an arc resembling a fogbow stands out in a distant clouds. In this case, we are talking about a cloudbow. The cloudbow is considerably rarer than the fogbow and has its own phenomenon identification in the Skywarden's list of rare light phenomena.
Fogbow in faiding mist. Image by Mauri Korpi.
Fogbow. Photo by Päivi Kuljunlahti.
This image is an ecellent example that shows how fogbow can be seen around the watcher's head at antisolar point. Image my Olli Sälevä.
An even fogbow showing a slight supernumerary bow inside the darker inner zone of the arc. Photo by Seija Ropponen.
Fogbow at winter time. Image by Mikko Peussa.
A bright fogbow on mist floating abowe the ground. An outer secondary fowbow is present above the primary arc. Photo by Anna-Liisa Sarajärvi.
The sharp lines of the arc form shows that the nist driplets must have been relatively big in size. Image by Antti Peuna.
A rainbow or a fogbow? The sun below the horizon gives a red shade to the arc. The redness hides the original colors of the arc, which makes the classification hard. The observer describes small droplets that appeared on the car's windshield at the temperature of -15 C. Image by Olli Sälevä.
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