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echo: rberrypi
to: ALL
from: DENNIS LEE BIEBER
date: 2020-10-25 12:09:00
subject: Re: Pikon and settings fo

On Sat, 24 Oct 2020 18:41:25 +0200, Björn Lundin 
declaimed the following:

>
>I did not try the moon yet with the HQ camera (cloudy) , but I did with
>a rpi camera version 2 which I had before - and well - not so good. But
>images of closer objects - like a powerline 2 km away are good
>
 Have you verified that you still have focus movement available when
trying sky objects? The closer an object is, the more the sensor has to be
"pulled out" of the tube. Objects at infinity should have the sensor as far
in the tube as possible.

 Second -- how long are the exposures?

 If my math is correct, celestial objects "move" ~15 arcsec per second,
even a 1/4sec exposure well encounter nearly 4 arcsec of movement if you
don't have an equatorial tracking mount on the telescope.


--
 Wulfraed                 Dennis Lee Bieber         AF6VN
 wlfraed@ix.netcom.com    http://wlfraed.microdiversity.freeddns.org/

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