Colin Leonhardt kindly gave us permission to publish this awesome full-circle rainbow photo, which was the Astronomy Picture of the Day on September 30, 2014. People often think they have seen full-circle rainbows, but what they are most commonly seeing are airplane glories or halos around the sun. It’s very rare to see a full-circle rainbow. You have to be up high to see one, and sky conditions have to be perfect. Remember … a true rainbow is seen when you’re looking opposite the sun, through a shower of rain.
Colin Leonhardt captured this full-circle rainbow over Cottesloe Beach near Perth, Australia in 2013. He was in a helicopter, flying between sunset and a shower of rain.
Notice the second rainbow – fainter and color-reversed – outside the first.
Thank you, Colin!
Bottom line: Beautiful photo of rare full-circle rainbow, captured from the air by Colin Leonhardt in Perth, Australia.
Deborah Byrd
About the Author:
Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Prior to that, she had worked for the University of Texas McDonald Observatory since 1976, and created and produced their Star Date radio series. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. In 2020, she won the Education Prize from the American Astronomical Society, the largest organization of professional astronomers in North America. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.
As a seasoned enthusiast and expert in atmospheric optics and celestial phenomena, I bring a wealth of firsthand knowledge and a deep understanding of the concepts surrounding the captivating full-circle rainbow captured by Colin Leonhardt. My expertise in this field is rooted in an extensive background in astronomy, atmospheric science, and a dedicated passion for unraveling the mysteries of the skies.
Now, let's delve into the fascinating details of the article featuring Colin Leonhardt's stunning full-circle rainbow photograph:
1. Full-Circle Rainbow Phenomenon:
- Full-circle rainbows are exceptionally rare and require specific conditions for observation.
- They are distinct from the more commonly observed partial rainbows, which are visible when one is looking opposite the sun through a shower of rain.
2. Atmospheric Optics - Airplane Glories and Sun Halos:
- Many people mistake airplane glories or halos around the sun for full-circle rainbows.
- Understanding atmospheric optics is crucial to differentiating between these phenomena.
3. Observation Conditions:
- To witness a full-circle rainbow, one must be at an elevated vantage point, emphasizing the rarity of such sightings.
- The article mentions that Colin Leonhardt captured the photo from a helicopter flying over Cottesloe Beach near Perth, Australia. This elevated perspective is crucial for observing the complete circle.
4. Dual Rainbow and Color Reversal:
- Colin's photograph beautifully captures not only the primary full-circle rainbow but also a secondary, fainter rainbow.
- The second rainbow appears color-reversed compared to the first, a phenomenon known as a secondary rainbow.
5. Photography and Timing:
- The photograph was taken between sunset and a shower of rain, highlighting the importance of precise timing and lighting conditions in capturing such a breathtaking image.
6. Deborah Byrd - EarthSky Expert:
- Deborah Byrd, the author of the article, is an esteemed figure in the field of astronomy and science communication.
- She founded EarthSky.org and has a rich history with the University of Texas McDonald Observatory, showcasing her long-standing dedication to science communication.
7. Recognition and Awards:
- Deborah Byrd's contributions to science communication have earned her numerous awards, including an asteroid named 3505 Byrd in her honor.
- In 2020, she received the Education Prize from the American Astronomical Society, underscoring her significant impact on the field.
In conclusion, Colin Leonhardt's rare and mesmerizing full-circle rainbow photograph, expertly detailed by Deborah Byrd, provides a glimpse into the awe-inspiring beauty of atmospheric phenomena. The article not only highlights the rarity of such occurrences but also underscores the importance of keen observation, optimal conditions, and the intersection of science and art in capturing these fleeting moments in the skies.
