Finland Light Pillars - OPOD

Last updated on September 16, 2023

Finland Light Pillars - A Spectacular Atmospheric Phenomenon

Have you ever witnessed a breathtaking display of light pillars in the night sky? If not, then you're in for a treat! Finland, with its subzero temperatures and pristine landscapes, is known for its mesmerizing light pillars. These stunning optical phenomena are captured beautifully by photographer Jari Luomanen, who graciously shared his images with us. In this article, we will delve into the science behind Finland's light pillars and explore the captivating details that make them so enchanting.

Unveiling the Magic of Light Pillars

At first glance, Finland's light pillars may appear like tall columns of light reaching towards the heavens. However, the truth behind this magical illusion lies in the behavior of hexagonal plate crystals suspended in the subzero air. These crystals act as tiny mirrors, reflecting ground lights towards the observer's eye. The collective glints from these crystals create an awe-inspiring spectacle that resembles upward pillars of light.

The Role of Plate Shaped Crystals

Plate shaped crystals play a crucial role in the formation of Finland's light pillars. The ground lights can reflect either externally from a lower hexagonal face or internally from an upper face of these crystals. Positioned approximately midway between the ground lights and the observer's eye, these crystals become the source of the mesmerizing 'pillar' effect.

Divergent Light Halos and Crystal Orientation

Unlike other atmospheric optical phenomena such as sun and moon pillars, Finland's light pillars are characterized by divergent light halos. Interestingly, the crystals responsible for creating these pillars do not need to be tilted significantly from their horizontal orientation. Even a slight tilt is sufficient to generate the illusion of tall pillars. This unique feature sets Finland's light pillars apart from other similar phenomena.

The Intricacies of Sun and Moon Pillars

In contrast to Finland's light pillars, sun and moon pillars are parallel light halos that require crystals with larger tilts to form. These tilts are necessary to align the crystal faces in a way that allows the pillars to appear vertical. The distinct differences in crystal orientation between Finland's light pillars and sun/moon pillars contribute to their varying appearances and characteristics.

A Symphony of Colors

Finland's light pillars are not only a marvel of vertical illumination but also a captivating display of colors. The interaction between the plate shaped crystals and the ground lights gives rise to a stunning array of hues. Depending on the source of the ground lights, these pillars can showcase vibrant shades of red, orange, yellow, green, and even blue. Each color adds a touch of magic to the already enchanting spectacle.

Capturing the Beauty of Light Pillars

Photographer Jari Luomanen has skillfully captured the ethereal beauty of Finland's light pillars through his lens. His photographs not only showcase the mesmerizing visual impact of these phenomena but also allow us to appreciate their intricate details. From the delicate hexagonal shapes of the crystals to the subtle variations in color and intensity, Luomanen's images offer a glimpse into the mesmerizing world of light pillars.

The Winter Wonderland of Finland

Finland's subzero temperatures and pristine landscapes create the perfect conditions for the formation of light pillars. The cold air allows for the suspension of plate shaped crystals, while the vast expanse of untouched snow-covered ground provides a stunning backdrop for these celestial displays. As you gaze upon the light pillars dancing in the night sky, you can't help but feel a sense of wonder and awe at the beauty of nature's artistry.

Exploring the Science Behind Light Pillars

While Finland's light pillars may seem like something out of a fairytale, they can be explained by the principles of atmospheric optics. Understanding the behavior of light as it interacts with ice crystals in the atmosphere helps us unravel the mysteries behind these captivating phenomena. Through careful observation and scientific analysis, researchers continue to delve deeper into the intricacies of light pillars, enhancing our knowledge and appreciation of these natural wonders.

Embracing the Magic

Finland's light pillars are a testament to the awe-inspiring beauty that can be found in nature. As we marvel at the enchanting dance of light in the night sky, let us embrace the magic and wonder that surrounds us. Whether it's through the lens of a talented photographer or our own eyes, the experience of witnessing Finland's light pillars is a reminder of the breathtaking phenomena that exist in our world, waiting to be discovered and cherished. So, next time you find yourself in Finland on a clear winter night, keep your eyes peeled for the mesmerizing display of light pillars illuminating the heavens above.

Light Pillars, Finland ~ Images by Jari Luomanen (Atmospheric Optics, landscapes & more). Hexagonal plate crystals drifting in the subzero air reflect ground lights towards the eye. Their collective glints give the illusion of upward pillars of light.

All images ©Jari Luomanen, shown with permission

Plate shaped crystals are responsible. The ground lights reflect externally from a lower hexagonal face or internally from an upper one.

The crystals generating the 'pillar' are approximately mid way between the ground light and the eye.

The pillars are divergent light halos. The crystals making them do not need to be tilted far from horizontal to generate the illusion of tall pillars.

In contrast, sun and moon pillars are parallel light halos and need crystals with large tilts.

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Reference Atmospheric Optics

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