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Subject: Re: Time from 2102-D starfinder
daveweilacher@XXX.XXX
Date: Mon Feb 11 2002 - 14:09:39 EST
Because I considered this response to be inaccurate, it was able to trigger the thought process to make it work for me.
The problem with the response was that you never use GHA directly with the starfinder.
To draw sun, planets, moon onto the disk, you use right ascention.
To position blue disk properly, you use LHA of aries.
So now I'm thinking that if you get meridian passage of aries from the daily pages of almanac and correct for your longitude using arc to time, it gives you the exact time aries passes your position.
From this, I can mark off each hour as 15 degrees on the rim.
Does this do it?
Original Message:
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From: Chuck Taylor ctaylor@XXX.XXX
Date: Mon, 11 Feb 2002 09:00:58 US/PACIFIC
To: NAVIGATION-L@XXX.XXX
Subject: Re: [NAV-L] Time from 2102-D starfinder
With the appropriate blue template in place, turn the disk on the starfinder
until the azimuths and altitudes of the bodies on the face of the starfinder
match what you see in the sky. Read the GHA of Aries from the pointer. Open up
your Nautical Almanac to the appropriate page and find the time at which the GHA
of Aries matches that shown by the starfinder. You will probably need to go to
the Increments and Corrections pages too. The result will be approximate.
Chuck Taylor
Everett, WA, USA
> In David Burch Starfinder book, there is an illustration showing time recorded
on the
starfinder wheel. The caption says something like "Once you determine a
specified
time...."
>
> I can't find any reference to how you go about determining a specified time.
>
> Does anyone have a clue for me?
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