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Originally posted by FoJAk
reply to post by LeoVirgo
Thank you for the reply. I can see you have been very busy with this thread, so I really appreciate the hard work! I was kind of confused with your reply. Sorry, I don't understand much about astrological speak. So I have a question, does what you said mean that I am a Leo? Again, thanks in advance.
Originally posted by americandingbat
Hi Leo/Virgo
I have a question about how you decide which sign the sun is in, especially with regard to the Scorpio/Ophiucus issue.
Do you just use the boundary lines given according to Stellarium or do you try to judge for yourself?
Do you know how the boundaries are determined (I don't, this is an honest question).
I ask because when I look at the boundaries in Stellarium, what I see is that the ecliptic (path of the sun) seems really to be between the two constellations, if you just look at where the stars are. I mean, there's only one star in Scorpio above the line, and only one star in Ophiucus below the line, and the boundary they show seems pretty arbitrary to me.
edit to add another question:
I know this would be hard to do in this thread, since most people don't know exactly what time they were born, but do you put any weight on the rising sign?
[edit on 7/12/2010 by americandingbat]
The ecliptic serves as the center of a region called the zodiac, which constitutes a band of 9° on either side. Traditionally, this region is divided into 12 signs of 30° longitude each. By tradition, these signs are named after 12 of the 13 constellations straddling the ecliptic. The zodiac signs are very important to many astrologers. Modern astronomers typically use other coordinate systems today (see below).
For the purpose of determining the constellations in contact with the ecliptic, the constellation boundaries as defined by the International Astronomical Union in 1930 are used. For example, the Sun enters the IAU boundary of Aries on April 19 at the lower right corner, a position that is still rather closer to the "body" of Pisces than of Aries. Needless to say, the IAU defined the constellation boundaries without consideration of astrological purposes. The dates the Sun passes through the 13 astronomical constellations of the ecliptic are listed below, accurate to the year 2002. The dates will increment by one day every 70½ years, and already several have changed. The corresponding tropical and sidereal dates are given as well.
The position of the vernal equinox is not fixed among the stars but due to the lunisolar precession slowly shifting westwards over the ecliptic with a speed of 1° per 72 years. A much smaller north/southwards shift can also be discerned, (the planetary precession, along the instantaneous equator, which results in a rotation of the ecliptic plane). Said otherwise, the stars shift eastwards (increase their longitude) measured with respect to the equinoxes — in other words, as measured in ecliptic coordinates and (often) also in equatorial coordinates. Using the current official IAU constellation boundaries — and taking into account the variable precession speed and the rotation of the ecliptic — the equinoxes shift through the constellations in the Astronomical Julian calendar years (in which the year 0 = 1 BC, -1 = 2 BC, etc.) as follows:
* The March equinox passed from Taurus into Aries in year -1865, passed into Pisces in year -67, will pass into Aquarius in year 2597, will pass into Capricornus in year 4312. It passed along (but not into) a 'corner' of Cetus on 0°10' distance in year 1489.
* The June solstice passed from Leo into Cancer in year -1458, passed into Gemini in year -10, passed into Taurus in December year 1989, will pass into Aries in year 4609.
* The September equinox passed from Libra into Virgo in year -729, will pass into Leo in year 2439.
* The December solstice passed from Capricornus into Sagittarius in year -130, will pass into Ophiuchus in year 2269, and will pass into Scorpius in year 3597.
Originally posted by americandingbat
reply to post by LeoVirgo
Thanks for the reply.
I'll be honest, I don't really know what to think of the whole astrology thing, and I mostly just use the "is this helpful to me" metric when deciding what to think
For example, my chart is very much earth/air dominated (in all three types -- tropical, sidereal, and astronomical). This fits with what I know of challenges that I face, modes of thinking that I use, defense mechanisms that I overuse. Maybe that's just coincidence, but looking at my chart provides me a means of questioning myself that I have found useful.
Also, thanks for answering my question about where the constellation boundaries in Stellarium come from and how you use them.
I'm still a bit confused about the ecliptic thing -- I thought the Sun was always right on the ecliptic (within a matter of seconds of the ecliptic anyway) and it was only the other planets that vary in distance from the ecliptic (up to 17 degrees in the case of Pluto I think)? That is, I thought the ecliptic is by definition the apparent path of the Sun, so I'm confused how it could be off (I did try looking at December 4, but didn't see what you meant).
09:10PM - 16 july 1985
Originally posted by Syrus Magistus
Hello again, I just have one question if you're still around, OP. Do our Rising signs need to be reworked, and if so, how? Thanks again.