Re: [APML] Guiding far from the object

[Roland Roberts <roland@astrofoto.org>]

>>>>> "Nicola" == Nicola Montecchiari <nmontec@libero.it> writes:

    Nicola> do you see any problem in guiding with a star that is far
    Nicola> from the object you are shooting?

    Nicola> I'd like to shoot NGC7000 for instance and at my latitude
    Nicola> is at zenit in this period, and I don't want to have my
    Nicola> neck broken because I have to be in an unconfortable
    Nicola> position :-)

Depends on (1) how accurate your polar alignment is, (2) how far away
the star is, and (3) how wide-field your shot is.

I have routinely guided on stars 30-degrees aware when shooting film
with a 50mm lens after a drift alignment.  I have often resorted to
this primarily because with my old 60mm Tasco as a guidescope, I can't
see all that many stars bright enough to guide on without
eyestrain....

roland
-- 
		       PGP Key ID: 66 BC 3B CD
Roland B. Roberts, PhD                             RL Enterprises
roland@rlenter.com                     76-15 113th Street, Apt 3B
roland@astrofoto.org                       Forest Hills, NY 11375

--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>