A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Douglas Stephen
Date: 2015 Nov 22, 15:01 -0800
I think that one way to do this is to precompute any star for the specific date and time of interest and then using the relationship that GHA of the star = SHA of the star + GHA of aires. Both GHA of the star and SHA of the star are given in the TI-89 StarPilot precompute so you can subtract SHA of the star form GHA of the star and that will give you GHA of aires. You may need to add 360 degrees to the GHA of the star before subtracting. Not exactly what you are looking for but I think it is a work around.