Frequently asked questions
Charts > Circular charts
can I determine which harmonic chart should be generated?
Enter a number in the 'start date' field in the page for 'extended
chart selection'. The first number there is used as harmonic number,
in the case of harmonic horoscopes.
is the purpose of the "Nine Persona Charts"?
This is a method, developed by the German astrologer Peter Orban.
Please, read the article on "Persona
Charts" in the Understanding Astrology section of this website
for more information.
- Is it possible
to show aspects between transits (or solar return) and natal positions?
Not directly. You can do a work around, if you enter the data of your solar return
or transit chart as the chart of a second person and then select the chart type "Synastry
Chart (2)" for your natal and the transit chart. This shows aspects between
the outer (transit) and inner (natal) chart.
- What is the difference
between the "corrected" and "uncorrected" Davison Relationship
The Medium Coeli (MC) computed for the time midpoint, which is the basis of the
Davison chart, deviates very slightly (usually by less than 1 degree) from the
composite MC (computed as the midpoint between the two personal MCs). The time
correction applied to the standard Davison chart brings its MC into perfect alignment
with the meridian axis of the composite chart. Most astrologers read the composite
chart and the Davison chart together.
In both cases, the location is computed by getting separately the midpoint between
the two logitudes and the two latitudes. This is not the same as the midpoint
along the shortest distance between the two points.
There are two experimental variants offered:
Spherical midpoint: here the shortest arc between the two natal places is
divided into two. While theoretically this seems an attractiv option, it leads
to a lot of circumpolar charts for couples born on different continents, i.e. Europe and America.
Reference location: The user can select a reference location for the chart.
- How can I change
the Universal Time on transit charts?
There's a trick. Display the transit chart and see that it shows UT: 00:00:00
below the date, in red, in the upper left corner.
Now edit the URL in the browser and append. &stx2=vshgmt=16 and press ENTER.
You will get the transits for UT 16:00.
For setting the minute, you need to use decimal hour fractions, e.g. vshgmt=16.5
will result in 16:30 UT etc.
- How is the progressed ascendant calculated?
The sideral time at birth (RAMC) is progressed with the daily sidereal time progress, also called the Naibod key, which as about 3m55s. For each year of progression, RAMC is progressed by this amount. MC, Ascendant and house cusps of the progressed chart are computed from the progressed RAMC.