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What is the maximun exposure time for the StarTRACKER?
02-20-2015, 11:01 AM
Post: #1
What is the maximun exposure time for the StarTRACKER?
Hi, I am wondering about the max exposition time you can take a photo with this.

Thx
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02-24-2015, 04:06 PM
Post: #2
RE: What is the maximun exposure time for the StarTRACKER?
Hi,
I am taking photos with a maximum exposure time of 4-5 minutes. Take in account that, because we are not pointing exactly the north pole (the Polaris is close, but not in the exact Celestial North pole (info below) ) this deviation will cause a appreciable shift in the stars trajectory if you trespass this time limit (or if you use too much zoom).

http://en.wikipedia.org/wiki/Celestial_pole
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