M56

Messier 56, Globular Cluster in Lyra

 

Image Type: RGB, 56% scale
Telescope: 10" Aries f/15 Maksutov-Cassegrain on Astro-Physics 900GTO German Equatorial
Effective Focal Length: approx. 3600mm
Resolution: 0.75"/pixel
Accessories: None
CCD: SBIG ST-4000XCM (running at -11 deg. C)
Exposures: 13x5 min RGB
Filter(s): IDAS LPS
Exposure Date: 4 July 2010
Location: Malvazinky Observatiory in Prague, Czech Republic
Seeing, FWHM: 1.9"
Processing Software: MaximDL, PixInsight, eXcalibrator, Adobe Photoshop
Image Acquisition Software: MaximDL, TheSky6, CCDAutoPilot, FocusMax, PinPoint
Remarks: Color calibration via The NOMAD1 Catalogue. Sharpening with a trous wavelet algorithm and deringing support, no deconvolution. Moonlit, fogged sky with heavy light pollution.
   
 

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