Re: what will be the best observing device ?

From: Tony Beresford (
Date: Mon Jun 23 2003 - 02:11:00 EDT

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    At 02:47 23/06/03, Joerg Kampmann wrote:
    >Hi group,
    >being rather newbie in this "business" - which optical device is best
    >suited for observing satellites in particular those with "invisible"
    >magnitudos (> 6) - any telescopes with special mounts on the market??
    It all depends how faint you want to go Jorg. I have for the last 16 years
    used 7x50 binoculars. If you use binoculars of bigger aperture or magnification
    you will need to mount them. If you want to be able to see the geo satellites , larger
    apertures are required and one needs to use a telescope of 20cm aperture like
    Mike McCants reported today on the list. You use it at its lowest possible magnification, so
    as to get as large a field of view as possible. A 1 degree field of view  is required
    at least in my opinion. I might be biased in this opinion because from 1964-1975 i used
    the  20x125 refracting telescope known as an "Moonwatch apogee scope". It had a
    2.25 degree foield of view. 
    Tony Beresford
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