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This is a 30 minute star trail taken from my home in west
Oklahoma City toward the north. The image on the left is the final
processed image and has been heavily retouched to improve the appearance of
the shot. The image on the right is a stack only and shows the true
situation of light pollution in our community. The salmon colored sky
glow in the right image is mostly light from poorly designed sodium vapor
streetlights as well as light pollution from other light sources. Such
light sources not only destroy our view of the night sky, they also cost us
all millions of dollars in wasted electrical power each year.
Sensible lighting
practices just make good sense. Our lighting should light the
ground, not the sky!
Date: 6/22/2005
Location:
My Home,
Oklahoma City, OK
Telescope: None
Camera: Canon 20D,
18-55 Telephoto @ f/4.5, ISO 800
Exposure Count: 60 frames @ 30 seconds, total
exposure 30 minutes
Guiding: Unguided
Post Processing: Photoshop
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