Depends on the planet and the location. For the zodiac, you need to have a vernal equinox and an ecliptic - which is complicated for moons etc. (Is the ecliptic the path of the sun or of the orbited body? The sun's path may not be circular - and IIUC a horoscope on a satellite might have Sol Retrograde.) For the houses, using Placidus, you need to be outside the Arctic Circles - on Uranus, the Arctic Circle is at 8° latitude. And if the body isn't spherical, concepts like "horizon" and thus "Ascendant" become problematic.
Assuming you're talking about a non-arctic position on a spherical satellite of the Sun, it should just be a question of tweaking some constants and going through the process again. Is there an event you're interested in?
Huygens's horoscope isn't completely in jeopardy (and domification is the least of our troubles). You need a circular ecliptic and a circular equator - the vernal equinox is where they meet. I think these are your options:
Titan-Sun: Use the average line of the Sun's path (which is effectively Saturn's ecliptic) as Titan's ecliptic, and use Titan's equator as the equator.
Saturn-Sun: Use Saturn's ecliptic and Saturn's equator. (This would mean that all of Saturn's moons would have the same zodiac.) This is a little wierd, since you'd still need Titan's pole to do domification.
Titan-Saturn: Use Saturn's path across Titan's sky as the ecliptic, and use Titan's equator as the equator. This is the most elegant, but is quite a departure. OTOH, Saturn is BY FAR more visible than Sol from Titan. I guess you'd use Saturn signs instead of Sun signs?
Ack! Just took a closer look. Titan is in a synchronous orbit with Jupiter and has zero axial tilt. That means that the Titan-Saturn option is right out - Titan's equator = Saturn's path through Titan's sky. Also, Titan's equator/orbit is only a third of a degree from Saturn's equator, so the Titan-Sun and Saturn-Sun methods would only differ slightly.
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branchandroot
no subject
Date: 2006-07-28 03:04 pm (UTC)no subject
Date: 2006-07-28 03:21 pm (UTC)Assuming you're talking about a non-arctic position on a spherical satellite of the Sun, it should just be a question of tweaking some constants and going through the process again. Is there an event you're interested in?
no subject
Date: 2006-07-28 03:27 pm (UTC)no subject
Date: 2006-07-28 03:47 pm (UTC)Alex Trebek:
no subject
Date: 2006-07-28 04:10 pm (UTC)Not sure which of these is best.
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Date: 2006-07-28 04:20 pm (UTC)no subject
Date: 2006-07-28 05:15 pm (UTC)no subject
Date: 2008-03-12 05:16 pm (UTC)