Rho Ophiuchi Region and Antares Complex
Light nebulae, dark nebulae, and globular clusters surrounding the stars Rho Ophiuchi and Antares (Alpha Scorpii)
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| Other names: |
Rho Ophiuchi Region, Rho Ophiuchi Nebula (IC 4604), IC4603, IC 4605, NGC 6144, M4, M80, Antares Complex |
| Optics: |
Canon EF 200mm f/2.8L II lens at f/4.5 — photo of setup |
| Mount: |
Losmandy GM-8 w/Gemini on Meade Standard Field Tripod |
| Camera: |
Canon EOS 5D Mark II [ unmodified ] |
| Exposure: |
50 minutes [ 10 x 5 minutes ] at ISO 1600 |
| Accessories: |
Autoguided with Orion StarShoot Autoguider and Stellarvue SV80S at f/6 |
| Location: |
Mt. Pinos, CA |
| Date |
July 25, 2009 |
| Notes: |
Processing: Image acquisition with Canon EOS Utility. Image calibration, align, and combine in ImagesPlus 3.75. Levels, curves, noise smoothing (Noel Carboni's PS Tools), selective sharpening, crop, and resize in Photoshop.
10 dark frames, no flat frames. Ambient temperature was between 52-56°F during the imaging session.
Click the image for a larger version (1800 x 1200, ~3.0 MB).
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