Antilhue - Chile

IC 4603 - IC 4604
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Image Data

Designation IC 4603 (center) and IC 4604 (surroundings)
Constellation Ophiuchus (Oph)
Description Possibly the most colorful patch of the night sky, this magnificent but very faint nebulosity is the central part of the much larger Rho Oph complex that includes mag 4.5 Rho (in the blue emission nebula just off to the left), mag 1.0 Antares and globular cluster M4, both off to the right (south) of this 110 x 75 arcmin field of view.
Exposure LRGB 80:60:50:80 min @ -18C, all 1x1
Camera SBIG ST-10XE selfguided,  CFW-8,  SBIG (CS) LRGB Filterset
Optics Astro-Physics AP105 Traveler with 0.75x reducer (467mm FL -  f/4.45)
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD, DeBloomer, Sigma Beta, Registar, Adobe Photoshop 6.0
Location - Date - Time San Esteban (Chile) - 20Jul2003 - 00:30 to 06:30 UTC 
Conditions Transparency 6,  Seeing 5, Temperature +11C