Rho Ophiuchus region, red emission nebulae and blue and yellow reflection nebulae illuminated by blue and red/yellow shining stars. The red/yellow shinig star on the bottom is Antares, a red giant, 600 lightyears away(see also the size comparison to our Sun below and Hertzsprung-Russel diagram below), on the right hand side you can see the globular cluster M4, 7000 lightyears away, and above the blue giant star Al Niyat, 730 lightyears away, which is illuminating a red emission nebula. Left on top of the photo of the Rho Ophiuchi Area a blue reflexion nebula illuminated by Rho Oph., a blue main sequence triple star, 400 lightyears away.
Astro photo taken using a Canon 200mm L lens Alentejo Portugal
An incredible explosion of colors created by Mother Nature.
See also section star clusters for M4.