Antilhue - Chile

Bok Nebulae
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Image Data

Designation Group of Bok Globules in IC 2948
Constellation Centaurus (Cen)
Description Dark clouds, like these Bok Globules, were once thought to be holes in the sky. In fact, the extinction caused by their dust particles blocks the light from the emission nebula behind. Bok Globules are considered to be too small to collapse into stars and are likely to be destroyed by the radiation of nearby stars. A good example of this destruction are cometary globules, such as CG4, where the dust liberated by energetic starlight feebly reflects some of it showing a long, comet-like tail.
Exposure Ha 12 x 15 min @ -15C, 1x1
Camera SBIG ST-10XE selfguided,  CFW-8,   Custom Scientific 4.5 nm Ha Filter
Optics Astro-Physics AP155EDFS @ f/7.2 (prime focus)
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD, Sigma Reject, Adobe Photoshop 6.0
Location - Date - Time San Esteban (Chile) - 02Apr2003 - 00:30 UTC
Conditions Transparency 6,  Seeing 5, Temperature +14C