Moonbows Phenomenon by Eleanor Hawking

"Moonbows Phenomenon" delves into the fascinating world of lunar rainbows, those ethereal nocturnal spectacles that occur when moonlight interacts with water droplets in the air. This comprehensive exploration reveals how these rare optical phenomena require specific conditions to form: a full or nearly full moon positioned at 42 degrees or lower to the horizon, clear skies, and the presence of water droplets, making them considerably more elusive than typical rainbows.

The book progresses through three distinct sections, beginning with the fundamental physics of light interaction and how moonlight's unique properties affect moonbow formation. It then guides readers through notable global viewing locations, from Yosemite Falls to Cumberland Falls in Kentucky, before connecting these observations to practical applications in meteorology and atmospheric science.

Throughout the text, readers discover intriguing insights, such as why moonbows appear white to the human eye despite containing the same spectral colors as rainbows, and how their observation can serve as indicators of atmospheric conditions. Written for both scientists and educated enthusiasts, the book bridges multiple disciplines while maintaining accessibility. It combines theoretical knowledge with practical guidance, including specialized photography techniques and equipment recommendations for capturing these ethereal displays.

The work stands out for its comprehensive approach, incorporating recent spectral analysis studies and mathematical principles like the Mie scattering theory, while providing practical observation guides for witnessing these remarkable natural phenomena.