moon/sky

<n>NGC 2359, Thor's Helmet Nebula</n>. Photo by <n>Martin Pugh</n>.

Spiral nebula seen on edge from the book <n>The Earth and the Stars</n>. Photo by <n>Mount Wilson Observatory</n>.

A 1950 photograph of <n>The Great Spiral Nebula in Andromeda (M31)</n> from <n>Mount Wilson Observatory</n>.

<n>Melanie King</n>'s platinum-palladium print of the <n>Butterfly Nebula</n> (NGC 6302).

A vintage-style reproduction of a moon map titled <n>The Moon</n>.

Illustration of the moon's phases from <n>The Earth and the Sky</n> (1898) by <n>Edward S. Holden</n>.

<n>Great Nebula in Andromeda</n>, photographed by <n>George Willis Ritchey</n> at <n>Yerkes Observatory</n> in 1901.