Astrophotography - Gary Cook

Andromeda

Ancient light. This is the Andromeda Galaxy, taken at Zaleski Forest in South Eastern Ohio, using a stack of 20 separate 5 minute exposures. This was NOT taken with a telescope; just a regular 400 mm f/5.6 lens on a Canon 5D mk III. Although the Andromeda Galaxy is approximately 2.5 million light years from Earth, it is never the less the largest celestial object in our night sky. People are often amazed when told that it appears to be 5 or 6 times larger than the moon appears to be in the sky. But Andromeda is very feint, so there not much to see with the naked eye, other than a slight smudge where the core of the Galaxy lies. But long exposure photography reveals this massive Galaxy in all its glory. The light captured in this image left the Galaxy 2,500,000 years ago and survived all that distance without hitting anything until it was captured in my camera. Precious and ancient light.