Atmospheric optical phenomena in which the Sun appears to have risen
This article is about the phenomenon of later dawn. It is not to be confused with the earlier False dawn.
A false sunrise is any of several atmospheric optical phenomena in which the Sun appears to have risen, but is actually still some distance below the horizon. A number of different atmospheric conditions can be responsible for this effect, all of which divert the sunlight in such a way as to allow it to reach the observer's eye, thereby giving the impression that the light comes directly from the Sun itself. The spread of light can sometimes be deceivingly similar to a true sun.
Several atmospheric phenomena that may alternatively be called a "false sunrise" are:
Simple reflection of the sunlight off the bottom of the clouds.
A type of ice crystal halo, such as an upper tangent arc or, more commonly, an upper sun pillar (similar to a subsun, but extending above the sun instead of below it). Like all halos, these phenomena are caused by the reflection and/or refraction of sunlight by ice crystals suspended in the atmosphere, often in the form of cirrus or cirrostratus clouds. The temperature on the ground is irrelevant to their occurrence, meaning that halos can be seen throughout the year and in all climates.
A type of mirage, specifically the Novaya Zemlya effect. Restricted mainly to the polar regions, this phenomenon was named after its first observation on Novaya Zemlya during the third polar expedition led by Willem Barentsz in 1596/97, when the Sun was seen above the horizon "in his full roundnesse"[1] two weeks before its predicted return after the polar night. The account, written by officer Gerrit de Veer, was met with general scepticism for centuries, and not until modern times was the effect proven to be genuine.[2]
The term "false sunrise" should not be confused with "false dawn", which is a term sometimes used to refer to the zodiacal light.
^"The Three Voyages of William Barents to the Arctic Regions, (1594, 1595, and ..." archive.org. 1876.
^Siebren van der Werf, Het Nova Zembla verschijnsel. Geschiedenis van een luchtspiegeling ("The Novaya Zemlya phenomenon. History of a mirage"), 2011; ISBN 978 90 6554 0850.
A falsesunrise is any of several atmospheric optical phenomena in which the Sun appears to have risen, but is actually still some distance below the...
while astronomical twilight being the darkest. The stage of sunrise known as falsesunrise actually occurs before the Sun truly reaches the horizon because...
appears to be on or above the horizon (thus representing the reverse of a falsesunrise). Depending on circumstances, these phenomena can give the impression...
Wegener arcs occasionally cross the sky to converge in the anthelion. Falsesunrise Glory Rainbow "Anthelion". Arbeitskreis Meteore e.V. Archived from the...
is atop a fire tower in the Pine Barrens when he is "distracted by a falsesunrise that lit up the clouds off to the northeast." Upon reaching the scene...
flares, and the people in Midland reported seeing what appeared to be a falsesunrise in the east shortly after each sunset. In 1953 the Railroad Commission...
Dawn is the time that marks the beginning of twilight before sunrise. It is recognized by the appearance of indirect sunlight being scattered in Earth's...
twilight. Such statutes typically use a fixed period after sunset or before sunrise (most commonly 20–30 minutes), rather than how many degrees the Sun is...
substitute for triple sec. A margarita made with orange soda and beer is a sunrise beer margarita; if it is made with carbonated fruit punch soda, it is a...
Profitable Sunrise was a Ponzi scheme that operated between 2012 and 2013, accepting deposits from members and promising returns on investment of 1.5%...
a contest whereby whichever of them got his horse to neigh first after sunrise shall become king. Darius cheats and ascends the throne (3.84–3.87). Ctesias'...
between the light of false dawn, appearing in the sky long after sunset, and the light of the first band of horizontal light at sunrise, the "true dawn" (الفجر...
versions of TrackMania Original, TrackMania Sunrise and the original TrackMania Nations. Many sources falsely reported that TrackMania Nations updated the...
simply Cross Ange, is a Japanese mecha anime television series produced by Sunrise that aired from October 2014 to March 2015. A manga adaptation began publication...
northernmost peak directly overlooking the west side of False Bay, Muizenberg beach (Sunrise Beach), 34°06′04″S 18°29′22″E / 34.10120°S 18.48948°E...
to a kind of person prophesied by the Bible to oppose Jesus Christ and falsely substitute themselves as a savior in Christ's place before the Second Coming...
Future GPX Cyber Formula (新世紀GPXサイバーフォーミュラ) is an anime series produced by Sunrise that aired in Japan from March 15 to December 20, 1991 on Nippon Television...
application to locate her cell phone and ear buds at the intersection of Sunrise Drive and Old Oregon Trail, about a mile from their home. According to...
simply as Code Geass, is a Japanese anime television series produced by Sunrise. It was directed by Gorō Taniguchi and written by Ichirō Ōkouchi, with...