Rho Ophiuchi nebulosa konplexua gas eta hauts nebulosa iluna da ρ Ophiuchi izarretik gradu bat hegoaldera, gugandik 427 argi-urtera aurkitzen da eta Eguzki Sistematik izarrak sortzen ari diren eremurik gertuena da. Zeta Ophiuchi (ζ Oph), gutxi gorabehera 366 argi-urteko distantziara kokatzen da eta Sh2-27 "Cobold" nebulosaz inguratuta dago, izarraren talka-uztaia da, Rho Ophiuchi hodei konplexutik gertu dagoen hauts-hodei trinkoetan barrena doan bitartean.

The Rho Ophiuchi cloud complex is a dark nebula of gas and dust that is located 1° south of the star ρ Ophiuchi of the constellation Ophiuchus and at an estimated distance of 427 ligth years is one of the closest star-forming regions to the Solar System. Zeta Ophiuchi (ζ Oph) is a star located in the constellation of Ophiuchus and lies at estimated distance of 366 light-years from the Earth. It is surrounded by the Sh2-27 "Cobold" nebula, the star's bow shock as it ploughs through dense dust clouds near the Rho Ophiuchi cloud complex.