Gliese 777, also known as HD 190360, is a binary star approximately 52 light-years away in the constellation of Cygnus.
It is also rather metal-rich, having about 70% more "metals" (elements heavier than helium) than the Sun, which is typical for stars with extrasolar planets.
The secondary star (Gliese 777 B) is a distant, dim red dwarf star orbiting the primary at a distance of 3,000 astronomical units (0.047 light years).
It too was initially thought to be on a circular orbital path that with later measurements turned out to be not the case.
The message was named Cosmic Call 1; it was sent on July 1, 1999, and it will arrive at Gliese 777 in April 2051.