Re: Q; using SAC IV-II as a guider


Mar 21, 2005

 


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#17321 Mar 21, 2005

I'm thinking of getting one of the new SAC IV-II's to replace my

unmodified ToUCam as a guider and planetary imager. I know the IV-II

has a bigger chip and I think it can integrate on chip for either 1/2

sec or 1 sec (not sure which), plus it's supposed to be a bit more

sensitive than my ToUCam. I need the increased sensitivity and longer

integration time more than the increased size, but all of these factors

could help. The thing I don't know is realistically, what would be my

limiting magnitude for finding guide stars if I'm using my StellarVue

Nighthawk (80 mm f6 acromat) for a guide scope.



Does anyone know if MaxIm will control one of these cameras? For that

matter, about how faint will I be able to go with one shooting through

an 80 mm f6? Is there a better inexpensive option for a guiding

camera? I'd like to be able to use whatever I get to help me guide

longer exposures on things like Messier objects, etc.



Thanks,

Steve







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