Johannes Kepleris v5.0

Topocentric astrological chart:
Kepleris represents first topocentric astrological chart. All other charts
are geocentric and subsequently they show incorrect aspects. Even for
general reviewing they are inconvenient because of an obvious conflict
between topocentric houses and geocentric planetary positions. Kepleris
shows all bodies in their natural positions and it is the only chart that
could be used by ancient astrologers.

Tables and astrological data:
The chart provides all necessary astrological data - positions,
retrogrades, aspects, essential dignities, accidental dignities, other
dignities, dispositors, mutual receptions, ruler of the chart, lunar day
and lots. Except of main house positions, which are topocentric, sign
positions are provided too. Sign positions are geocentric/ecliptic - the
same as in traditional geocentric charts.

Astrological interpretations:
A comprehensive set of interpretations is available. To get any
interpretation on any object just a mouse click is required on the symbol
of appropriate object - planet sign, house number, retrograde or aspect
sign. Interpretations are implemented for the chart, position tables and
the aspect table.

Planetarium and astronomical ephemeris:
Kepleris provides a real model of the local sky which includes all
necessary objects - Sun, Moon, Mercury...Pluto, 3141 stars, 1598 asteroids
and 101 comets. It's quite easy to observe them and to get any interesting
property or data. The star map provides also with all constellations,
their full figures, bounds and names.

Lunar Days and Lunar Calendar:
The concept of Lunar Days is one of the most ancient in astrology. Many
centuries ago people started to devise descriptions for all the days in
the lunar month. As a result, such descriptions existed in every major
astrological tradition, but the different traditions do not always agree.
We are left to choose the one which best fits our practical experience,
and after a period of observation, perhaps you will get to know what works
best for you. So what are the Lunar Days? Basically, they are the periods
of time between two consecutive risings of the Moon. Only the first and
the last days vary from this. The first Lunar Day starts at the moment of
the New Moon and ends at Moonrise following the New Moon. It can be very
short, even just a few minutes long. The last Lunar Day ends at the next
New Moon (when the next lunar month begins). This, too, can be quite short.
Since the laws of the Moon's movement are complicated, the duration of
lunar months varies. Some lunar months have all 30 lunar days, others have
only 29.The time of the Moon's rising depends on the longitude and
latitude of a place, so strictly speaking, it will be different for
different places..

Gregorian Calendar dates:
Calendar dates ù year, month, and day ù are problematic. Various calendar
systems have been in use at different times and places around the world.
This program deals with only two: the Gregorian calendar, now used
universally for civil purposes, and the Julian calendar, its predecessor
in the western world. As used here, the two calendars have identical month
names and number of days in each month, and differ only in the rule for
leap years. The Julian calendar has a leap year every fourth year, while
the Gregorian calendar has a leap year every fourth year except century
years not exactly divisible by 400. This application assumes that the
changeover from the Julian calendar to the Gregorian calendar occurred in
October of 1582, according to the scheme instituted by Pope Gregory XIII.
Specifically, for dates on or before 4 October 1582, the Julian calendar
is used; for dates on or after 15 October 1582, the Gregorian calendar is
used. Thus, there is a ten-day gap in calendar dates, but no discontinuity
in Julian dates or days of the week: 4 October 1582 (Julian) is a
Thursday, which begins at JD 2299159.5; and 15 October 1582 (Gregorian) is
a Friday, which begins at JD 2299160.5. The omission of ten days of
calendar dates was necessitated by the astronomical error built up by the
Julian calendar over its many centuries of use, due to its too-frequent
leap years.