30 minutes exposure. Kodak Ektachrome 400 wide format slide film.
300mm f/2.8 Pentax lens.
There are many large dark nebulae in the Scorpius-Sagittarius region of the Milky Way. One of the moore prominent is LDN 1773, also known as the Pipe Nebula. From a dark site in Australia, where it passes almost directly overhead during winter, it is very striking, even with the naked eye.
In the image above, the bright star a little above left of centre is theta ophiuchi. A little to the left of this star a an "S" shaped cloud. this is the Snake Nebula .
The numerous other dark nebulae for the most part were catalogued by E. E. Barnard and so have "B" designations.
