Rho Ophiuchi is a triple star system located at the southern end of the constellation Ophiuchus near de limit with Scorpius. The stars are embedded in a large blue reflection nebulosity catalogued as IC 4604 which is mixed with several filaments of dark nebulae. This region is also part of a larger dust and nebulosity region known as the Rho Ophiuchus / Antares complex.
The image was taken with a 6" f5 Newtonian and a QSI 583 WS for a total exposure of 100 minutos only and bin 2x2 in all channels. The site was located 110 km north from Buenos Aires Argentina,