Secrets Of Astrophotography's Biggest Rock Star

Thierry Legault, the 47-year-old French engineer, may be one of the most famous amateur astronomy photographers in the world. But what's really striking about his images is how busy they are, teeming with stars, unlike other astrophotographers' stark simplicity.

Legault talked to the Wall Street Journal about his hobby, driving all around the world photographing stars, nebulae, galaxies, space shuttles and the International Space Station from the absolute best vantage points. He consults a special website, Calsky.com, to know exactly when various phenomena will be best observed. He's traveled to Angola, Egypt, Russia and Shanghai, China to photograph various stellar phenomena.

The WSJ article contains the best, and simplest, explanation of why so many astrophotography pictures are so brightly colored. In the case of Legault, he uses filters:

[A]ll of the deep-sky pictures of constellations, star clusters, nebulae and galaxies, meteorites and asteroids require an exposure of several hours. For these photographs, Mr. Legault places red, green or blue filters between the camera and the telescope. Without them, the pictures would come out in black-and-white. "I prefer pastel colors because they are the colors we would see if our eyes were more sensitive to low light or if these objects were brighter."

Here are some of our favorite images by Thierry Legault. They're available in much, much higher resolution, along with many other photos, over at his website. [Astrophoto.FR via Wall Street Journal]