Upsilon Andromedae b, formally named Saffar, is an extrasolar planet approximately 44 light-years away from the Sun in the constellation of Andromeda. The planet orbits the solar analog star, Upsilon Andromedae A, approximately every five days.

Discovered: June 23, 1996

Orbital period: 116 hours

Discoverer: Geoffrey Marcy

Star: Upsilon Andromedae A

Discovery site: United States

Did you know: Like the majority of known extrasolar planets, Upsilon Andromedae b was detected by the variations in its star's radial velocity caused by the planet's gravity.