GazAstro Posted March 30, 2021 Share Posted March 30, 2021 Hi all, going to start trying galaxies with my C8 ... only really manged guiding successfully at 350mm before so should be interesting ! Equipment - HEQ5 (belt modded) C8 edge / 0.7 reducer OVL OAG. From the excellent astronomy tools site my ratio is 1:1.53 as I will be binning the guide cam to help find guide stars. My question is, I know I have little or no chance of round stars at 0.55"/pixel so do you think I will have more success binning imaging camera or by resampling images after capture ? Best guiding I have reached is approx 0.8 p to p and my local seeing is usually pretty poor, in the 2 - 4 arc secs range (forecast for tonight is 1.2 though - and pigs may fly past scope while imaging 🙂 ) Thanks for looking. Quote Link to comment Share on other sites More sharing options...
AstronomyUkraine Posted March 30, 2021 Share Posted March 30, 2021 (edited) 5 hours ago, GazAstro said: Hi all, going to start trying galaxies with my C8 ... only really manged guiding successfully at 350mm before so should be interesting ! Equipment - HEQ5 (belt modded) C8 edge / 0.7 reducer OVL OAG. From the excellent astronomy tools site my ratio is 1:1.53 as I will be binning the guide cam to help find guide stars. My question is, I know I have little or no chance of round stars at 0.55"/pixel so do you think I will have more success binning imaging camera or by resampling images after capture ? Best guiding I have reached is approx 0.8 p to p and my local seeing is usually pretty poor, in the 2 - 4 arc secs range (forecast for tonight is 1.2 though - and pigs may fly past scope while imaging 🙂 ) Thanks for looking. Binning 2x2 will bring your resolution to 1.1"/pixel, which would make guiding easier, and you could always drizzle the data, if you need to. Brian Brian Edited March 30, 2021 by AstronomyUkraine 1 Quote Link to comment Share on other sites More sharing options...
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