M11
M11 Open cluster in Scutum

 M11 Open Cluster map Map

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M11 Galactic Cluster in Scutum
Date July 3-4, 2016
Exposure LRGB 100:30:30:40 (3.3 hours)
Camera STL11000M with AstroDon Gen II filters
Telescope/Mount ASA 10N f/3.7 on AP900 GTO CP3
Guiding External guide head with 50 mm MiniBorg
Processing MaximDL, Photoshop CS6, NIK Sharpener
Comments Good seeing but very warm; acquired with CCD Commander from
Rancho Hidalgo, Animas NM

  Full resolution crop    Map w/Barnard objects

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M11 Galactic Cluster in Scutum
Date July 20-21, 2014
Exposure Luminance only 25 x 300 sec (uncropped)
Camera STL11000M with Baader clear filter (water-assisted cooling)
Telescope/Mount ASA 10N f/3.7 on AP900 GTO CP3
Guiding External guide head with 50 mm MiniBorg
Processing MaximDL, Photoshop CS6, GradientXterminator
Comments Moderate seeing and transparency; acquired with CCD Commander


Click for full resolution

Crop of the 'Wild Duck Cluster'

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M11 Galactic Cluster in Scutum
Date August 29, 2008
Exposure LRGB 15:15:15:15 (luminance synthesized from RGB)
Camera STL11000M with Astronomk filters
Telescope/Mount ASA 10N f/3.6 on Losmandy G11 w/Gemini
Guiding External guide head with E-finder
Processing MaximDL, Photoshop CS3, GradientXterminator
Comments Moderate seeing, difficult flats, test of repaired STL11K

Click on image for full resolution version

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M11 Galactic Cluster in Scutum
Date July 2, 2005 (Star Graze II - EOC)
Exposure LRGB 16:9:11:9 (unguided 60 second integrations, unbinned)
Camera SXV-H9 with Schuler filters
Telescope Takahashi Sky90 f/4.5 (reducer/flattener) on GM-8
Guiding unguided
Processing MaximDL, Photoshop CS, FITS Liberator
Comments Dark sky, clear, good transparency, LM 6+ (19.85 mag/arcsec2)