Rho Ophiuchi Nebulosity
Ophiuchus-Scorpius Boundary Near Antares
Object Data
| Constellations: | Ophiuchus and Scorpius |
| Location: |
Image center is approximately 1.5 degrees NW of Antares RA = 16h26m Dec = -25d02m (epoch 2000) |
| Visual Magnitudes: |
Antares is mag 0.96 and red supergiant type M4 and IC6144 are binocular and telescopic objects Reflection nebulae are photographic / CCD objects |
| Angular Dimensions: | Image field is approximately 4 x 5 degrees |
| Comments: |
Reflection nebulae are cataloged as IC4603 IC4604 IC4605 IC4606 Emission nebula is cataloged as Sh2-9 |
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M4 is an easy object in binoculars but IC6144 can be hard to locate with a
small telescope in the glare of Antares. The emission nebula around Sigma Scorpii Sb2-9 is visible with a medium aperture telescope under dark skies. A nebula filter helps. The reflection nebulae are difficult visually even with large apertures. |