Antilhue - Chile

NGC 6397 in Ara
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Image Data

Designation NGC 6397,  Bennett 98,  Caldwell 86
Object type Globular cluster
Coordinates 17 h 41 min    - 53° 40'    Ara  (Ara)
Description This is a bright globular, faintly visible to the unaided eye under a dark sky. It's also one of the best clusters for small telescope because it contains stars of mag 10.  At  about 6500 light years NGC 6397 is one of the nearest to the sun, only M 4 is probably closer.

Click on the image for a higher resolution version.  The field of view is  37 x 25 arcminutes with north towards the top.

Exposure LRGB 60:20:20:25 min @ -25°C ;  all exposures 5 min unbinned
Camera SBIG STL-11000 with Astronomik Type 2 filterset  -  selfguided
Optics RCOS 14.5" Ritchey-Chrétien @ f/9 (prime focus)
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD,  Registar,  CCDSharp,  PixInsight V.1,  Adobe Photoshop CS
Location - Date - Time San Esteban (Chile) - 05Jun2005 @ 06:00 UTC
Conditions Transparency 8/10,  Seeing 8/10, Temperature  + 5°C