vdB 158 is a reflection nebula in the constellation of Andromeda. It is located about two degrees north of the mag. 3.8 star λ Andromedae, and is the illuminated part of a long dark cloud of gas and dust that extends in northeast-southwest direction, known as GAL 110 - 13, the elongated shape of which would be the result of the collision between two molecular clouds. A tiny planetary nebula PK 110-12 1 could be found at upper left.