Showing posts with label sun. Show all posts
Showing posts with label sun. Show all posts

Tuesday, May 28, 2024

Sunset in the sky

As the days get longer and the sun travels more to the north, it gives a wonderful scenery in the sky.



Then I started noticing that just before and after sunset, there is this faint sun pillar in the sky.


A sun pillar is a vertical column of light that appears above or below the sun, creating a stunning visual effect. It occurs when sunlight interacts with ice crystals in the atmosphere, typically from high-altitude cirrus clouds. Here’s how it works:


Ice Crystals: When the sun is low on the horizon (such as during sunrise or sunset), its light passes through a layer of hexagonal ice crystals. These crystals can be found in thin, wispy clouds.


Light Refraction: As sunlight enters the ice crystals, it refracts (bends) and splits into different colors. The hexagonal shape of the crystals causes the light to spread out vertically.


Pillar Formation: The refracted light rays bounce off the bottom faces of the ice crystals and create a vertical column of light. This column appears as a bright pillar extending upward or downward from the sun.


Colorful Display: Sun pillars can exhibit various colors, including red, orange, pink, and purple. The specific colors depend on the angle of the sun, the size of the ice crystals, and atmospheric conditions.

Sunset and Sunrise: Sun pillars are most commonly seen just before sunset or just after sunrise when the sun is near the horizon. The low angle allows the light to pass through more ice crystals, enhancing the effect.

Remember, these beautiful phenomena are temporary and can vanish quickly as the sun moves. So if you ever spot a sun pillar, take a moment to appreciate its natural wonder!

My other blogs:

Roadscape Photography
Chevrolet El Camino 1970
Life @ Köyliö, mostly Finnish

Wednesday, May 10, 2023

Sun halo


A sun halo is an atmospheric optical phenomenon that occurs when sunlight is refracted, or bent, by ice crystals in the atmosphere. When the sun's light enters an ice crystal, it is refracted and dispersed into its spectral colors, creating a circular or elliptical halo around the sun. Sun halos can appear as bright, white rings or arcs around the sun, with a radius of about 22 degrees.


Sun halos are relatively rare phenomena and are typically seen in areas with cold climates or high altitudes, where ice crystals are present in the atmosphere. They can also be seen in connection with other atmospheric phenomena, such as sundogs (bright spots or patches of light on either side of the sun) and tangent arcs (bright arcs of light tangent to the sun halo).


Sun halos are often considered to be beautiful and awe-inspiring natural phenomena, and have been the subject of fascination and interest for centuries. In many cultures, they are seen as a sign of good luck or an omen of change.

My other blogs:

Roadscape Photography
Chevrolet El Camino 1970
Life @ Loimaa, mostly Finnish

Wednesday, May 6, 2015

Dark soul.


Shot this today morning when I was waiting for a bus.  I also posted a square version to Instagram, Tumblr, Twitter, Facebook and G+.