Michael A. Stecker
mastecker@gmail.com


 

M11 (Wild Duck Cluster)
 The Wild Duck Cluster (aka: M11 or NGC 6705) is an open cluster of stars in the constellation Scutum (the Shield) in
the summer Milky Way just east of the Scutum Star Cloud.  It is one of the richest and most compact metal-rich
open clusters with an estimated age of 316 million years and distance from Earth of 6,120 light-years.
 file: M11-60sX 42AP130FLr 616mmP3-6292023a1.jpg

Photographic Data
telescope:
Astro-Physics 130 mm f/6 EDF Starfire refractor (focal length= 877 mm)
 

mount:
ZWO AM5 harmonic/strainwave
Mount Guide Settings in Asiair Plus:
Calibrate Step: 5,000 ms
Dec Duration: 3,000 ms
RA Duration: 2,000 ms
Aggression: 50% for both RA & Dec
Exposure time for guiding: 1 second
Guiding hardware:
SVBony 60 mm f/4 guidescope (fl=240 mm)
Guide Camera: ZWO ASI662MC color planetary camera (2.97 micron pixels)

 controller/computer
ZWO Asiair Plus via WiFi to Samsung S7+ tablet
 .
imaging camera:
ZWO ASI533MC-Pro one-shot color astro-camera cooled to 14-degrees F with Optolong L-Pro light pollution filter
 .
exposures:
60 seconds X 42 (42-minutes)
 
processing
Stacked in Asiair Plus and cropped and post-processed in Adobe Photoshop Elements
 .
photographic site:
West Los Angeles
http://mstecker.com/pages/chhouses_fp.htm
(Bortle 9 light polluted sky)
 
 

cropped image of M11