Rho-Ophiuchi nebula V4 (Stephen Duffy)

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Rho-Ophiuchi nebula V4

The colorful clouds surrounding the star system Rho Ophiuchi compose one of the closest star forming regions. Rho Ophiuchi itself is a binary star system visible in the blue reflection nebula just to the left of the image center. The star system, located only 400 light years away, is distinguished by its multi-colored surroundings, which include a red emission nebula and numerous light and dark brown dust lanes. Near the lower left of the Rho Ophiuchi molecular cloud system is the yellow star Antares, while a distant but coincidently-superposed globular cluster of stars, M4, is visible just to the right of Antares. Although most of these features are visible through a small telescope pointed toward the constellations of Ophiuchus, Scorpius, and Sagittarius, the only way to see the intricate details of the dust swirls, as featured above, is to use a long exposure camera. This cloud covers an angular area of 4.5° × 6.5° on the celestial sphere. Text from Astronomy Picture of the Day
Lens: 200 mm Canon Camera Canon 550D Mount MYT
RGB one shot color, 1 hour exposure
Reprocessed March 2023

Sacramento Valley Astronomical Society

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