Antilhue - Chile

NGC 4755 - The Jewel Box
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Image Data

Designation NGC 4755, The Jewel Box
Object type Open star cluster
Description This is a sight to behold even in the smallest telescope.  When taking this picture, special care was taken not to overexpose any of the stars in order to preserve star color. Very short exposures were needed, resulting in a somewhat noisy background.
Exposure RGB 2:2:2 min @ -15C, all individual exposures were 5 s each
Camera SBIG ST-10XE + SBIG CFW-8 + SBIG (CS) RGB filterset
Optics Astro-Physics AP155EDFS (prime focus  -  f/7.2)
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD, Adobe Photoshop 6.0
Location - Date - Time San Esteban (Chile) - 02May2003 - 02:30 UTC
Conditions Transparency 6,  Seeing 5, Temperature +15C