L1551 IRS 5

L1551 IRS 5 is a protostellar envelope surrounding a binary protostar system in the constellation of Taurus 450 light-years from Earth. The binary system itself is known as L1551 NE, and each star is surrounded by protoplanetary disk. The system is one of Jim Kaler's The 100 greatest stars.

The binary is surrounded by a complex, gas-rich protoplanetary disk system.