Re: The Feasibility and Application of Observing Small LEO Satellites with Amateur Telescopes

From: George Herbert via Seesat-l <>
Date: Thu, 5 Feb 2015 17:23:22 -0800
You may be able to do a liquid crystal shutter for exposure times >> the action time, which is ms to tens of ms.

For normal photography no, for astrophotography including this?  Should be yes.

George William Herbert
Sent from my iPhone

On Feb 5, 2015, at 3:08 PM, Sheldon Cooper via Seesat-l <> wrote:

>> Sounds like something similar to what is used at observatories for all 
>> sky viewing of weather conditions. Depends a lot on the camera and the 
>> optics used but I doubt if you will get fainter than magnitude +6 - more 
>> likely around mag +4 or so. Good luck.
>> Greg
> That's exactly what gave me the idea and made me wonder if that method had ever been used as a UNID/lost track fence. I don't plan to do it myself as I'm definitely not located in a dark sky area. One reader emailed to say that DSLR mechanical shutter life might be an issue with all-night short time exposures taken nightly.
> On the viewing problems of the PDF at the thesis link:
> I have had none viewing it within the Chrome browser or using the stand-alone Foxit reader.
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Received on Thu Feb 05 2015 - 19:24:09 UTC

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