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We examine the morphology and luminosity distribution of a strongly warped spiral galaxy PGC 20348 by conducting a detailed BV I CCD surface photometry using BOAO 1.8m telescope. The radial surface brightness shows a break at warp radius (r w ) with a shallow gradient in the inner disk and a steeper gradient in the outer disk. The luminosity of east side of the disk is ∼ 0.5 mag fainter than the west side at r > r w . The reason for the asymmetric luminosity distribution is thought to be thedoi:10.5303/jkas.2007.40.1.009 fatcat:fjtucz6nubb2zg2udjunjv6zoy