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The Rho Ophiuchi nebula complex is one of the nearest star-forming regions to the Sun. The multiple-star system Rho Ophiuchi (ρ Oph) is located at an approximate distance of 360 light-years from Earth in the constellation Ophiuchus. The star system consists of at least five components. The main pair, Rho Ophiuchi AB, the largest star pictured here, is a visual double composed of two class B2 stars, a subgiant and a giant.