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M55 Specter Globular Cluster in Sagittarius
Captured M55 globular cluster ( Specter Cluster )on Wednesday night in Sydney for the second time this year. Located in the constellation of Sagittarius it shines at magnitude 7.42 and has quite a wide spread core
This cluster was discovered by Nicolas Louis de Lasaille in 1752 while observing in South Africa
M55 is a great target to image especially over the past few months
Scope: 6” f6 Bintel Newtonian reflector ( 900mm focal length )
Image Scale: 0.98 arc sec / pixel
Mount : Skywatcher HEQ5 Pro
Imaging Camera : Canon 600D unmodded
ISO 800 with Baader coma corrector
Guide scope : Orion 50mm with helical focuser
Guide camera : ZWO ASI120 MM-3
Capture Software : BYEOS
Goto and Tracking : EQMOD , Stellarium Scope and Stellarium
Guiding Software: PHD2
45 x 90 sec guided subs ( no dithering )
20 x darks
Stacking Software: Deep Sky Stacker
Post Processing: Startools v 1.4
Thanks for looking , comments welcome
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