55 Cancri d, also named Lipperhey, is an extrasolar planet in a long-period orbit around the Sun-like star 55 Cancri A. Located at a similar distance from its star as Jupiter is from our Sun, it is the fifth and outermost known planet in its planetary system. 55 Cancri d was discovered on June 13, 2002.

Discovered: June 13, 2002

Orbital period: 14 years

Semi-amplitude: 46.85 ± 1.8

Star: 55 Cancri A

Eccentricity: 0.025 ± 0.03

Discoverer: Geoffrey Marcy