I am very sorry Konstantin but I do not understand your answer in any
way. My shutter is manually moved and 'dates' have no meaning. My
question remains: is there a projection that shows the heavens
plotted as azimuth versus elevation.

Lawrence

--- In guide-user@yahoogroups.com, "Poschinger Konstantin v."
<KPoschinger@...> wrote:

>
> You should simply define a Horizon with the dates of your dome

shutter.

>
> Konstantin
>
>
> Konstantin v. Poschinger
> Hammerichstr. 5
> 22605 Hamburg
> 040/8805747
> http://www.astro22605.de
>
> Am 08.09.2007 um 11:27 schrieb Lawrence Harris:
>
> > I am wanting to identify a suitable projection for Guide. I want

to

> > produce a
> > grid that I can align my observatory shutter to - eg 90 degrees
> > azimuth (due
> > east) - that then shows sky targets (Messier etc) vertically
> > upwards, keeping
> > the same azimuth, so that I can list targets to image without
> > moving the dome.
> >
> > I selected simple cylindrical but this did not work; following a
> > vertical grid
> > line showed changing azimuth, and therefore the targets would go
> > outside the
> > shutter.
> >
> > I have tried several but none seem to fit. This seems to be a

simple

> > requirement; can anyone advise?
> >
> > TIA
> >
> > Lawrence Harris
> >
> >
> >
>
>
>
> [Non-text portions of this message have been removed]
>