(Caldwell 4) is a mag. 7, reflection nebulosity, about 18' across. Dust areas are obvious in the photograph. Located 3.4° SW of Alfirk (beta Cephei). From the Digital Sky Survey.
C4: NGC 7023
R.A. 21h 01.8m Dec. +68o 12'
Reflection nebula in Cepheus, 18' x 18' size.
Chart prepared by D. Parkin.
