Moonbow: Difference between revisions
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Numerous places in the world feature spray-, fog- or mist-induced bows. In the [[United States]] such bows may be seen in relation to various waterfalls including [[Niagara Falls]], [[New York (state)|New York]],<ref>{{Cite web|url=https://www.niagarafallstourism.com/blog/goat-island-and-luna-island-how-did-they-get-their-names/|title=Goat Island and Luna Island How Did they get The…|website=Niagara Falls Canada|accessdate=17 December 2020}}</ref> [[Yosemite National Park]], [[California]]<ref>{{cite news|title='Moonbows,' Lunar Rainbows, Visible At Yosemite National Park (VIDEO)|url=http://www.huffingtonpost.com/2011/07/15/moonbows-lunar-rainbows-yosemite_n_900052.html|publisher=Huffington Post—Green Blog|accessdate=22 December 2012|date=15 July 2011}}</ref> and [[Cumberland Falls]], near [[Corbin, Kentucky|Corbin]], [[Kentucky]].<ref name=bailey>{{cite book |last=Bailey |first=Bill |title=Kentucky State Parks |publisher=Glovebox Guidebooks of America |location=[[Saginaw, Michigan]] |year=1995 |isbn=978-1-881139-13-3 |chapter=Cumberland Falls State Resort Park}}</ref><ref>{{cite book | last1 = Manning | first1 = Russ | title = The Historic Cumberland Plateau: An Explorer's Guide | page = 106 | url = https://books.google.com/books?id=ZtfyLnSBF8sC&q=moonbow | accessdate = 2011-10-28 | isbn = 978-1-57233-044-3| year = 1999 }}</ref> [[Victoria Falls, Zambia|Victoria Falls]], on the border between [[Zambia]] and [[Zimbabwe]] is also widely known for spray moonbows.<ref>{{cite web|title=A Lunar Rainbow A Wonderful Sight Not To Be Missed...…|url=http://www.victoriafalls-guide.net/lunar-rainbow.html|website=Victoria Falls Activities|publisher=Victoria Falls Travel Guide|accessdate=22 December 2012}}</ref> |
Numerous places in the world feature spray-, fog- or mist-induced bows. In the [[United States]] such bows may be seen in relation to various waterfalls including [[Niagara Falls]], [[New York (state)|New York]],<ref>{{Cite web|url=https://www.niagarafallstourism.com/blog/goat-island-and-luna-island-how-did-they-get-their-names/|title=Goat Island and Luna Island How Did they get The…|website=Niagara Falls Canada|accessdate=17 December 2020}}</ref> [[Yosemite National Park]], [[California]]<ref>{{cite news|title='Moonbows,' Lunar Rainbows, Visible At Yosemite National Park (VIDEO)|url=http://www.huffingtonpost.com/2011/07/15/moonbows-lunar-rainbows-yosemite_n_900052.html|publisher=Huffington Post—Green Blog|accessdate=22 December 2012|date=15 July 2011}}</ref> and [[Cumberland Falls]], near [[Corbin, Kentucky|Corbin]], [[Kentucky]].<ref name=bailey>{{cite book |last=Bailey |first=Bill |title=Kentucky State Parks |publisher=Glovebox Guidebooks of America |location=[[Saginaw, Michigan]] |year=1995 |isbn=978-1-881139-13-3 |chapter=Cumberland Falls State Resort Park}}</ref><ref>{{cite book | last1 = Manning | first1 = Russ | title = The Historic Cumberland Plateau: An Explorer's Guide | page = 106 | url = https://books.google.com/books?id=ZtfyLnSBF8sC&q=moonbow | accessdate = 2011-10-28 | isbn = 978-1-57233-044-3| year = 1999 }}</ref> [[Victoria Falls, Zambia|Victoria Falls]], on the border between [[Zambia]] and [[Zimbabwe]] is also widely known for spray moonbows.<ref>{{cite web|title=A Lunar Rainbow A Wonderful Sight Not To Be Missed...…|url=http://www.victoriafalls-guide.net/lunar-rainbow.html|website=Victoria Falls Activities|publisher=Victoria Falls Travel Guide|accessdate=22 December 2012}}</ref> |
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Spray moonbows are also seen with some regularity in the [[cloud forests]] of Costa Rica, in mountain towns like Monteverde and Santa Elena. These occur when clouds of mist are blown in from the Caribbean by the [[Christmas Winds]]. The Christmas Winds happen from the end of December through late January or early February. These clouds of mists create a streaming pattern of stripes giving rise to their popular name in Spanish, ''pelo de gato'' ("cat's hair). Moonbows happen in this part of Costa Rica almost every full moon in the months of December through February. The bows that are caused by Pelo de Gato are not limited to just before dawn but can happen after sunset too, but it does need a full or nearly full moon |
Spray moonbows are also seen with some regularity in the [[cloud forests]] of Costa Rica, in mountain towns like Monteverde and Santa Elena. These occur when clouds of mist are blown in from the Caribbean by the [[Christmas Winds]]. The Christmas Winds happen from the end of December through late January or early February. These clouds of mists create a streaming pattern of stripes giving rise to their popular name in Spanish, ''pelo de gato'' ("cat's hair). Moonbows happen in this part of Costa Rica almost every full moon in the months of December through February. The bows that are caused by Pelo de Gato are not limited to just before dawn but can happen after sunset too, but it does need a full or nearly full moon. |
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Moonbows are also found in wet regions of [[Hawaii]], such as [[Kauai]] (with the moon rising in the east during light rain) and the [[Hawaii (island)|Big Island]] of Hawaii.<ref>{{cite news|title=Photographer captures moonbow over Waimea|url=http://www.hawaiinewsnow.com/story/18698752/photographer-captures-moonbow-over-waimea|accessdate=22 December 2012|newspaper=Hawaii News Now|date=June 4, 2012}}</ref> |
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==See also== |
==See also== |
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Revision as of 13:24, 9 February 2023
A moonbow (also known as a moon rainbow or lunar rainbow) is a rainbow produced by moonlight rather than direct sunlight. Other than the difference in the light source, its formation is the same as for a solar rainbow: It is caused by the refraction of light in many water droplets, such as a rain shower or a waterfall, and is always positioned in the opposite part of the sky from the Moon relative to the observer.[citation needed]
Moonbows are much fainter than solar rainbows, due to the smaller amount of light reflected from the surface of 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, a moonbow often appears to be white.[1] However, the colors in a moonbow do appear in long exposure photographs.
Moonbows have been mentioned at least since Aristotle's Meteorology (circa 350 BC).
Viewing
Moonbows are most easily viewed when the Moon is at or nearest to its brightest phase full moon. For moonbows to have the greatest prospect of appearing, the Moon must be low in the sky (at an elevation of less than 42 degrees, preferably lower) and must not be obscured by cloud. In addition, the night sky must be very dark. Since the sky is not completely dark on a rising/setting full moon, this means they can only be observed two to three hours before sunrise (a time with few observers), or two to three hours after sunset. And, of course, there must be water droplets (e.g. from rain or spray) opposite the Moon. This combination of requirements makes moonbows much rarer than rainbows produced by the daytime sunlight. Moonbows may also be visible when rain falls during full moonrise at extreme latitudes during the winter months when the prevalence of the hours of darkness gives more opportunity for the phenomenon to be observed.[citation needed]
It is said that the definition of the colours depends upon the size of the moisture drops present in the air: the smaller they are the less vivid the colours. Below 1/500 inch diameter they usually refract more or less white light as the component colours are merged. [2]
Locations
Numerous places in the world feature spray-, fog- or mist-induced bows. In the United States such bows may be seen in relation to various waterfalls including Niagara Falls, New York,[3] Yosemite National Park, California[4] and Cumberland Falls, near Corbin, Kentucky.[5][6] Victoria Falls, on the border between Zambia and Zimbabwe is also widely known for spray moonbows.[7]
Spray moonbows are also seen with some regularity in the cloud forests of Costa Rica, in mountain towns like Monteverde and Santa Elena. These occur when clouds of mist are blown in from the Caribbean by the Christmas Winds. The Christmas Winds happen from the end of December through late January or early February. These clouds of mists create a streaming pattern of stripes giving rise to their popular name in Spanish, pelo de gato ("cat's hair). Moonbows happen in this part of Costa Rica almost every full moon in the months of December through February. The bows that are caused by Pelo de Gato are not limited to just before dawn but can happen after sunset too, but it does need a full or nearly full moon.
Moonbows are also found in wet regions of Hawaii, such as Kauai (with the moon rising in the east during light rain) and the Big Island of Hawaii.[8]
See also
References
- ^ Walklet, Keith S. (2006). "Lunar Rainbows – When to View and How to Photograph a "Moonbow"". The Ansel Adams Gallery. Archived from the original on 2007-06-24. Retrieved 2007-07-09.
- ^ Valerie Porter, “The Second Field Book of Country Queries” p. 89
- ^ "Goat Island and Luna Island How Did they get The…". Niagara Falls Canada. Retrieved 17 December 2020.
- ^ "'Moonbows,' Lunar Rainbows, Visible At Yosemite National Park (VIDEO)". Huffington Post—Green Blog. 15 July 2011. Retrieved 22 December 2012.
- ^ Bailey, Bill (1995). "Cumberland Falls State Resort Park". Kentucky State Parks. Saginaw, Michigan: Glovebox Guidebooks of America. ISBN 978-1-881139-13-3.
- ^ Manning, Russ (1999). The Historic Cumberland Plateau: An Explorer's Guide. p. 106. ISBN 978-1-57233-044-3. Retrieved 2011-10-28.
- ^ "A Lunar Rainbow A Wonderful Sight Not To Be Missed...…". Victoria Falls Activities. Victoria Falls Travel Guide. Retrieved 22 December 2012.
- ^ "Photographer captures moonbow over Waimea". Hawaii News Now. June 4, 2012. Retrieved 22 December 2012.
External links
 | This article's use of external links may not follow Wikipedia's policies or guidelines. (March 2016) |
- "Maui's Night Sky" Time elapse photography by Wally Pacholka. Maui No Ka 'Oi Magazine Vol.14, No.3 (May 2010)
- Lunar Rainbow photos from Victoria Falls
- Moonbow picture
- Moonbow picture made with long exposure
- Zambezi Guide on taking photos of Lunar Rainbows from Victoria Falls
- Moonbow in New Zealand
- Moonbow photo at Brandywine Falls, Whistler, Canada
- Moving rainbow over Patagonia, all night time-lapse movie
- Kentucky State Park Moonbow Dates At the bottom of the page under the "Moonbow" tab
- Moon Light Effects: Moon Rings, Moon Dogs And Other Moon Light Phenomena...
- Moonbow on Big Island Hawaii
- Moonbow over Yosemite Falls from Cook's Meadow
- https://moon-lamp.co.uk/