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Old 25-09-2019, 12:21 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,669
Final M20 Trifid for this year

Captured my final image of M20 Trifid Nebula for the year
Conditions were poor to say the least
Next door neighbours two storey houses either side with their outside wall lights and backyard floods on until midnight ( don’t people know what motion sensors are ? for goodness sake )
The bloke diagonally behind me obviously burning timber in his combustion heater which hasn’t dried out enough ( smoke bomb all night )
Seeing was poor to average
Bortle 8 Sydney suburban skies
6” f6 newt on a HEQ5 mount
Canon 600D with Baader coma corrector ( no filters )
34 x 2 minute guided subs ( no dithering this time to see what affect it would have )
15 x darks
PHD2 guiding using the PPEC algorithm in lieu of Hysteresis ( 1.00 to 1.20 arc sec error ) Guiding seems a lot smoother using this algorithm
Goto and tracking EQMOD
Captured on BYEOS
Stacked in DSS
Processed in Startools

Thanks for looking, comments most welcome
Attached Thumbnails
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