200404 – Lune LRGB Saturées

The moon as you have never seen it

Our eye is only adapted to a reduced spectrum of light frequencies. This spectrum is interpreted by our eyes and our brain and allows us to see colors. But only the ones we need to live on earth, or rather to survive. Nature is well done, and is not burdened with the superfluous.

However, if our eyes were more generous, we could distinguish much wider shades, and especially much finer. As the true colors of the Moon.

Our beautiful satellite still seems bicolor to us. White, gray, sometimes black. And yet, it is very colorful.

By taking three pictures, from a digital camera and a black and white sensor, each using a color filter (red, green, blue), and superimposing them with photo editing software in one image, we manage to make these colors visible.

The moon then takes on coppery and bluish hues: orange in the plains of lava rich in iron, dark blue in the plains of lava rich in titanium, the bright points in blue or deep purple are deposits on a plus old mantle and come from volcanic eruptions, also rich in titanium.