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Old 29-09-2019, 04:14 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,684
NGC 6541 Cacciatore Globular Cluster

Captured NGC 6541 Cacciatore Cluster last night. It’s located in the constellation of Corona Australis
and has a brightness of 6.5 magnitude.It was first discovered by Niccolò Cacciatore in 1826 at Palermo Sicily.James Dunlop sighted this cluster a short while later in his observatory at Parramatta Sydney

6” f6 newt on a HEQ5 mount
Canon 600D with Baader coma corrector and home made Cooling Fan ( sensor temp 19 deg C )
Bortle 8 Sydney Skies
No Filters
45 x 2 minute guided subs ( no dithering )
20 x darks
PHD2 guiding using the PPEC algorithm ( guide error 0.90 to 1.20 arc sec ) So far this algorithm is producing slightly better guiding than Hysteresis but time will tell
Mount balanced “East Heavy” on the western side meridian
First time using a JMI moto focus with remote handcontroller ( so much more accurate and a huge time saver )
Tracking and Goto EQMOD / Stellarium
Captured in BYEOS
Stacked in DSS
Processed in Startools

Thanks for looking , comments welcome
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