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Re: [ATM] Magnitude Limit in Telescope
See for a comprehensive discussion this link
http://www.twcac.org/onlinehorizon/eyepiecedarkly.htm
The morale is that calculating a telescope's limiting magnitude is
impossible, since there are too many unknowns to the equation. But there
are a thing or two to say about the subject :-)
Clear skies!!
Wouter van Reeven
On 0, Richard Klappal <klappal@xnet.com> wrote:
> The most detailed discussion I've seen of the topic is Dr Roger Clark's book
> "Visual Astronomy of the Deep Sky" (c) 1990, ISBN 0 933 346 54 9 published
> by Sky Publishing, or ISBN 0 521 36155 9 published by Cambridge Univ Press.
>
> Std disclaimer ...
>
> Richard
>
>
> -----Original Message-----
> From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net]On Behalf
> Of Stathis Kafalis
> Sent: Wednesday, 22 December, 2004 11:15
> To: ATM List
> Subject: [ATM] Magnitude Limit in Telescope
>
>
> Hello list members,
>
> how to calculate the telescopic magnitude limit? I found this Java Script
> http://www.go.ednet.ns.ca/~larry/astro/maglimit.html
> which shall be based on an S&T arcticle from Nov. 1989 page 522. Is this
> article or the formulas for the above website somewhere available? (it's too
> old to download it from the S&T arcives) In particular I am interested in a
> term that considers the gain or loss of limiting magnitude due to the
> magnification in a telescope.
>
> I also read this at Nils Olof Calin's site:
> http://web.telia.com/~u41105032/visual/Schaefer.htm , but I am not sure, If
> this is the same approach.
>
> Can some of you post which limiting mag they achieved with a certain
> telescope (aperture, type) and given limit with the unaided eye. What was
> the
> most favorate magnification?
>
> Greetings
>
> Stathis Kafalis
> www.stathis-firstlight.de
>
>
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