Antilhue - Chile

Messier 75
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Image Data

Designation M 75,  NGC 6864,  Bennett 124
Object type Globular cluster
Coordinates 20 h 06 min    - 21° 55'   Sagittarius  (Sgr)
Description Messier 75  is a mag 8.6,  rich and condensed globular found on the border between Sagittarius and Capricornus. This is a harder Messier object to resolve than most and a good example of a strongly compressed globular cluster.

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

Exposure LRGB 50:15:15:15 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,  CCDSharp,  PixInsight V.1,  Adobe Photoshop CS
Location - Date - Time San Esteban (Chile) - 05Jun2005 @ 09:00 UTC
Conditions Transparency 4-5/10,  Seeing 8/10, Temperature  + 5°C, high cloud