← Another date

Birthday · June 20, 2009

Seaside Moon Mirage

June 20, 2009

On the day you were born, the universe was already ancient beyond measure — and yet, in all those billions of years, it had never once...

Seaside Moon Mirage

A little universe, just for you

Your date.
Ready to give.

Free PNG · 1080 × 1350 · No account needed

Image rights and credit requirements apply when sharing or reusing imagery.

Change the year

APOD published June 20, 2009. Credit: Jean-Marc Audrin. A publication-date match, not a photo taken on your date. Independent of NASA.

Behind the image

Seaside Moon Mirage

Original APOD · June 20, 2009

This surprising view of the Full Moon rising on June 7 was captured with a telephoto lens from a seaside balcony near Nice, France. The orange Moon's dark markings and odd shape put the photographer in mind of an alien creature's face staring down at the passing ship. Of course, the Moon's distorted appearance is due to the unusual bending (refraction) of light rays creating multiple images or mirages, similar to sunset and sunrise mirages. The effects are most pronounced when temperature layers in the atmosphere produce sharp changes in air density and refractive index. Acting over long sight-lines to the rising and setting Sun or Moon, the refraction significantly alters the path of light rays creating merged, distorted images. Such mirages are also associated with the Green Flash.

Image credit: Jean-Marc Audrin

Explore June 20 in other years