Abstract
ABSTRACT Gradients in the surface brightness of the twilight and night sky require careful consideration both in the flat-field calibration and in the subsequent reduction of images that cover a large angular field. We present observations of BVRI surface brightness gradients in the twilight sky, and discuss some strategies for the treatment of gradients in the moonlit and dark sky.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Publications of the Astronomical Society of the Pacific
Paper Title
Journal
Date
