do u know about sun dog? if know guys what is it?

Answer 1

Here are some photo's. It's just reflected sunlight in the atmosphere due usually to ice crystals.

http://en.wikipedia.org/wiki/Sun_dog

Answer 2

if u'r an Indian and u buy the young world,then read 2day's 4th page of the young world.u'll get all the info that u require.anyway sun dog means A bright spot on the parhelic circle; caused by diffraction by ice crystals.it's a sort of a mock sun or a parhelion.but scientists also say that there is really a planet with 3 suns.

Answer 3

A sun dog or sundog (scientific name parhelion, plural parhelia, e.g. "with the sun") is a relatively common halo, an atmospheric optical phenomenon mostly associated with the refraction of sunlight by small ice crystals making up cirrus or cirrostratus clouds.

Sundogs typically, but not exclusively, appear when the sun is low, e.g. at sunrise and sunset, and the atmosphere is filled with ice crystals forming cirrus clouds, but diamond dust and ice fog can also produce them. They are often bright white patches of light looking much like the sun or a comet and are occasionally confused with those phenomena. Sometimes they exhibit a spectrum of colours, ranging from red closest to the sun to a pale bluish tail stretching away from the sun.[1]

The ice crystals causing atmospheric phenomenon are shaped as hexagonal prisms (ice Ih, e.g. with a hexagonal top and bottom and six rectangular sides). Some of these crystals are elongated, some flat; the latter causing crisp and bright sundogs if evenly oriented with their hexagonal ends aligned horizontally, while the former produces other atmospheric phenomenon, such as parhelic circle, 22° halo, circumzenithal arc, upper tangent arc, and lower tangent arc. A mixture of various crystals with different alignments produces several of these phenomenon at the same time.[1]

When sunlight passes through the sides of a flat crystal, both the angle of the sun rays and the orientation of the crystals affects the shape and colour of the sundogs. Misaligned or wobbling crystals produces colourful and elongated sundogs, while light passing through the crystal in non-optimal deviation angles (up to 50°) produces the "tail" of the sundog stretching away from the sun. As refraction is dependent of wavelength, the sundogs tend to have red inner edges while the colours further from the sun tend to be more bluish-white as colours increasingly overlap.[1][2]

When the sun is low, the two sundogs are located on the circle of the 22° halo. As the sun rises, the sundogs slowly move along the parhelic circle away from the sun to finally vanish as the sun reaches 61° over the horizon[1] (e.g. the sundogs move from the 22° halo to the circumscribed halo.)[3]

On Earth, the first planet (counting from the sun) with significant amounts of ice crystal-carrying clouds, the pair of sundogs flaking the sun are aligned with the horizon. On other planets and moons where water and ice are less prevalent, however, various crystal structures produce different halos. On the giant gas planets — Jupiter, Saturn, Uranus, and Neptune — other crystals forms the clouds of ammonia, methane, and other substances can produce halos with four or more sundogs.[4]

In remote stretches of Western Texas, sundog refers colloquially to a segment of a common rainbow.

Answer 4

Sun dogs, also called mock suns, are colored, luminous spots caused by the refraction of light by six-sided ice crystals in the atmosphere. These bright spots form in the solar halo at points that are 22 degrees on either side of the sun and at the same elevation as the sun. Below is a closeup of a sundog to the left of the sun.

Here is webpage showing you how it works !

http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/opt/ice/sd.rxml