Guest guest Posted May 4, 2005 Report Share Posted May 4, 2005 At 03:18 PM 5/3/05 -0600, Juan Revilla wrote: >... >I understand your reasoning. However, in normal practice the longitudes are >being calculated back to A.D. 221 all the time because one is using an >amount of accumulated precession (the ayanamsa) is valid only for a >starting point in A.D. 221. One is normally not aware of this fact because >the correction is seen as a simple displacement of position along the >circumference of the zodiac (a spatial consideration), without realizing >that precession is both in space and time. Precession has no meaning if it >is seen only in terms of space. Juan, Thank you for these valuable posts, which I hope many members of this forum will print and save. I have a few questions and comments. I believe it would be helpful for newer members of this forum if you would list the types of calculations sidereal astrologers use that utilize right ascension and declination. That is, give a short definition of each one and what the calculations are used for. (Parans for example) It would be helpful if you'd define 'bija correction.' I'm a little confused about precessed latitude. I understand latitude as the distance north or south each planet is from the ecliptic at any particular moment in time, and don't understand how this can be precessed. I also don't understand how the Sun can have any latitude at all. >Anyway, the correction of the longitudes with respect to the approximate >method based on the ayanamsa is rather small, as was seen in my example... Are you referring here to the positions you gave for the death of JFK in your fourth post? We have a lot of variety here on this list from students just beginning to investigate the sidereal zodiac to life-long pros. So it would be helpful to explain a few of the basics I mentioned above. One big problem with western siderealists has been that too many practitioners tend to be elitist in that they sometimes assume that everyone understands everything about sidereal methods. This is probably true on the Physics list, but there's a lot more variety here. Some of us don't have a thorough foundation in sidereal astrology. Thanks, Therese Quote Link to comment Share on other sites More sharing options...
Guest guest Posted May 4, 2005 Report Share Posted May 4, 2005 >I believe it would be helpful for newer members of this forum if you would >list the types of calculations sidereal astrologers use that utilize right >ascension and declination. That is, give a short definition of each one >and what the calculations are used for. Some of the techniques that are based on right ascension and declination: - paranatellontas - primary directions - astro-cartography - mundoscope A " paran " (short for parantellonta) refers to 2 planets (or stars) that rise, culminate, or set simultaneously at a given place. In practice, it is not the real rising or setting time that is used, but the distance in oblique or right ascension from the horizon and the meridian. If they have the same temporal distance, they form a paran. Parans are the only instance in the whole field of astrology where the real planets or celestial objects are used, instead of their projections in terms of discrete coordinates on a plane. The crossing of 2 lines in an astro-cartography chart is a paran. >It would be helpful if you'd define 'bija correction.' " bija " (meaning, I think, " small " ) corrections are used to transform calculations involving tropical time units into sidereal. " Bija " is in my opinion an unfortunate term for what is basically an acceleration from tropical to sidereal. If sidereal astrologers used the correct term (bija=sidereal), there would be more consistency in the techniques that are frequently used. >I'm a little confused about precessed latitude. I understand latitude as >the distance north or south each planet is from the ecliptic at any >particular moment in time, and don't understand how this can be precessed. >I also don't understand how the Sun can have any latitude at all. Precession involves a movement of the ecliptic, so an angle is formed between the ecliptic at the origin of coordinates and the ecliptic of date. This angle increases about 47 " per century and it affects the latitudes as well as --to a lesser extent-- the longitudes. The precession-corrected latitude of the Sun is the distance of the Sun to the ecliptic at the origin (e.g., the radix, A.D. 221...), as opposed to the " instantaneous " ecliptic of date, on which the Sun has latitude 0 (actually, the Sun always has a very small latitude on the ecliptic of date of less than 1 " ). > >Anyway, the correction of the longitudes with respect to the approximate > >method based on the ayanamsa is rather small, as was seen in my example... >Are you referring here to the positions you gave for the death of JFK in >your fourth post? Yes. Juan Quote Link to comment Share on other sites More sharing options...
Guest guest Posted May 4, 2005 Report Share Posted May 4, 2005 Thanks for these notes, Juan. It's helpful to me, at least, to have this all together for reference. Sidereal astrology is complex enough mathematically so that I still like to have definitions in my files to refer to when astrologers investigating the sidereal methods ask questions. And the only current sidereal writings we have are from you and a few others who post on the internet. I haven't used the techniques you listed below because I use various Jyotish methods instead, so I suppose that's why I never questioned the calculation of right ascension and declination in a sidereal zodiac. I agree that 'bija' is an unfortunate term for sidereal acceleration. Therese At 03:13 AM 5/4/05 -0600, you wrote: > >Some of the techniques that are based on right ascension and declination: > >- paranatellontas >- primary directions >- astro-cartography >- mundoscope > >A " paran " (short for parantellonta) refers to 2 planets (or stars) that >rise, culminate, or set simultaneously at a given place. In practice, it is >not the real rising or setting time that is used, but the distance in >oblique or right ascension from the horizon and the meridian. If they have >the same temporal distance, they form a paran. Parans are the only instance >in the whole field of astrology where the real planets or celestial objects >are used, instead of their projections in terms of discrete coordinates on >a plane. The crossing of 2 lines in an astro-cartography chart is a paran. > > >>It would be helpful if you'd define 'bija correction.' > > " bija " (meaning, I think, " small " ) corrections are used to transform >calculations involving tropical time units into sidereal. " Bija " is in my >opinion an unfortunate term for what is basically an acceleration from >tropical to sidereal. If sidereal astrologers used the correct term >(bija=sidereal), there would be more consistency in the techniques that are >frequently used. > > >>I'm a little confused about precessed latitude. I understand latitude as >>the distance north or south each planet is from the ecliptic at any >>particular moment in time, and don't understand how this can be precessed. >>I also don't understand how the Sun can have any latitude at all. > >Precession involves a movement of the ecliptic, so an angle is formed >between the ecliptic at the origin of coordinates and the ecliptic of date. >This angle increases about 47 " per century and it affects the latitudes as >well as --to a lesser extent-- the longitudes. The precession-corrected >latitude of the Sun is the distance of the Sun to the ecliptic at the >origin (e.g., the radix, A.D. 221...), as opposed to the " instantaneous " >ecliptic of date, on which the Sun has latitude 0 (actually, the Sun always >has a very small latitude on the ecliptic of date of less than 1 " ). > Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.