Rho Ophiuchi Wide Field

Why is the sky star stars Antares and Rho Ophiuchi nebula so colorful? The colored light emitted from the stars has created blue reflection nebula. Glycemic molecules have been exposed to ultraviolet rays, reddish emission nebula. In the light of the starry light, the astronomical cloud prevents the dust.
Antares is a red supergiant star, one of the brightest stars in the night sky. At the bottom of the center is a yellow-orange color cloud. Blue-colored Nebula Rho Ophiuchi is located at the top of the photo. The circular galaxy (globular cluster) M4 is located on the right side of Antares. Sigma Scorpii is the name of the star surrounded by red in the upper right. This cosmic cloud of photo shows the most colorful objects in the sky in the sky.