Lagoon Nebula in Sagittarius
Nebula is one of the major landmarks of the summer Milky Way, a
star-forming region bright enough to be seen with the naked eye.
The stars we see within it are children of the nebula, very
young by the standards of stars.
shot with my lovely little Astro-Physics Stowaway refractor, a
92mm instrument at f/6.6.
DSLR is unmodified, meaning it still has the infra-red filter
that diminishes the sensor's response to the red hydrogen-alpha
light that makes up much of the output of nebulae like the
Lagoon. This obligates me to make longer exposures, and makes it
more difficult for me to photograph certain nebulae, but it does
have its advantages. The red-magenta color of hydrogen-alpha
tends to dominate most nebula photography, resulting in a garish
view very unlike the more balanced, subtle views seen by visual
observers. To the eye, nebular light is dominated by the
blue-green of ionized oxygen, and I prefer to show that as much