In order to calculate positions of planets and houses, MyAstroChart makes use of Swiss Ephemeris.
(1)There are 3 modes of calculation in Swiss Ephemeris. By Swiss Ephemeris, by Moshier and by Full JPL. The calculation in MyAstroChart employs the one by Swiss Ephemeris and provides common astrological position*.
(3) Retrograde and Stationary
(4)Placidus house in high latitude
(5)Drawing Planet symbols
(6)Living with the Moon
(7)Void of Course Moon
MyAstroChart calculates the begining time of a void of course based on traditional definition, that is, as the time when the last major aspect (conjunction, sextile, square, trine and opposition) to one of the planets (Sun, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto) occurs.
Accordingly, semi-sextile(30 degrees apart) and quincunx(150), and Chiron and true Node are not taken into account, though the events of their aspects are graphically illustrated as well. Besides, Semi-square(45) and sesqui-quardrate(135), some astrologers consider they should be included, are also excluded and not displayed (except for these aspects to the Sun which are just displayed in regard to the phase of the Moon). There are more other aspects defined in astrology, but they are not taken at all.
A void of course ends at the time the Moon enters next sign. The Moon goes void of course every couple of days and the period of a void of course varies from a few seconds to about 2 days long.
Regarding the void of course Moon, some astrologers are indifferent and others pay keen attention. There are widely varied articles and critical opinions about the significance of and the advice for that period. Besides, there are some disputes on the definition itself. MyAstroChart developers have no intention to advocate anything on the void of course. We display it merely for the reference to get the idea of it.
Your Lunation Map
Living with the Moon