RE: [ATM] Magnitude Limit in Telescope

["Richard Klappal" <klappal@xnet.com>]

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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