Captured over 4 nights during the month of August 2014 from my Backyard Observatory in Western Michigan using LRGB & H-Alpha filters with the QHY11 Mono CCD/Takahashi E-180 and comprising of 4 panels.
The original image is 6928 x 4015 pixels and covers an area of sky equal to 7.06 x 4.09 degrees and includes quite a few Messier objects including M16, M17, M18, M24 and M25. I am hoping to add to this mosaic next year as these objects are now starting to decline to our western skies but I am grateful to have been able to capture the last (upper left) and fourth panel this week when we had a break in the stormy weather.
A much larger 50% annotated view of this image can be seen here
nova.astrometry.net/annotated_full/828322Total Exposure 8 hours
Image details
Location: DownUnder Observatory, Fremont MI
Date of Shoot: August 2014
H-Alpha 288 min, 9 x 8 min bin 1x1 (for each panel)
LRGB 192 min, 6 x 2 min each bin 1x1 (for each panel)
QHY11 monochrome CCD cooled to -10C
Takahashi E-180 F2.8 Astrograph
Paramount GT-1100S German Equatorial Mount
Image Acquisition Maxim DL
Stacking and Calibrating: CCDStack
Post Processing Photoshop CS5
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