Surface Brightness of Deep-Sky Objects
Roger N. Clark
The Surface Brightness distribution of an object determines its contrast and visibility as well as the exposure times needed by a camera to record it on film or an electronic sensor.
Introduction: Surface Brightness of Deep-Sky Objects
Measured with a Digital Camera
(The introduction shows data for the Orion Nebula (M42 and M43), NGC 1973-5-7, and M51.)
Surface Brightness Data for Deep Sky Objects
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Last Updated April 8, 2004
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