The Moon at 86%: A Colorful Interpretation of Lunar Geology
This vibrant image captures the Moon at an 86% phase, taken on September 11, 2025. What makes this photograph particularly special is its interpretation of the Moon's surface through color, offering a unique glimpse into its geological makeup.
Unveiling Lunar Minerals
The warm orange tones you see in the image are not just for aesthetic appeal; they represent areas on the lunar surface with a high concentration of iron oxide. Conversely, the cooler blue hues highlight regions rich in titanium, particularly in the basaltic plains. This colorization is achieved by significantly enhancing the saturation, a technique that effectively emphasizes the subtle geological contrasts present.
Advanced Imaging Techniques
To ensure that the fine details of the lunar surface are preserved, both in the brightly lit and shadowed areas, an HDR (High Dynamic Range) method was employed. This involved stacking multiple exposures, each capturing different levels of light. This meticulous process allowed for the texture to be maintained across the entire image and even revealed a subtle glimpse of the 'dark side' of the Moon.
Observing Celestial Wonders
Beyond the geological interpretations, this photograph also showcases fascinating optical phenomena. Notice the subtle rainbow effect surrounding the Moon – this is a result of dispersion, where light is split into its constituent colors as it passes through the atmosphere or the telescope's optics. Additionally, the distinct diffraction rays are a signature of the Newtonian telescope's construction, a testament to the precision of the equipment used.
Equipment Used:
- Camera: Sony a7s ii
- Telescope: GSO 150/750
- Mount: Arsenal EQ5
- Lens: Barlow 2x lens
