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Glossary M - R

See Medium Coeli
A term used in Classical and Medieval/Renaissance Astrology that refers to planets or aspects thought to have negative influence on the native. It usually refers to the planet Saturn and Mars, the Major Malefics (or Greater) . In modern Astrology minor Malefics (or Lesser) are also Uranus, Neptune and Pluto.


Masculine Signs
Air and Fire Signs. Those signs, regardless of gender that suggest aggressiveness, directness In antiquated Astrology texts they are referred to as the Positive Signs or Active Signs.


Medium Coeli, Med. Coeli, MC
The Midheaven. Taken to be the point directly overhead. In the chart in an unequal chart it is the cusp of the tenth house. This describes your career and public ambitions and your relations with superiors.


The invisible lines surrounding the Earth that run North to South and are measured in degrees. The Prime Meridian is 0 degrees at Greenwich England.


The point when the Meridan of the birthplace intersects the ecliptic. Defined as the cusp of the 10th house in most house systems, See also Medium Coeli, Mid. Coeli, MC


Can be defined at 00:00 hours, the beginning of the day—or at 24:00 hours, the end. Most astrologers use 24:00 hours to mean Midnight. Midnight ephemeris is always a zero hour ephemeris.


Sensitive points halfway between two factors in a horoscope.


Moon Nodes
The astronomical calculation of when the Moon's orbit intersects with the Sun's orbit. The two intersecting points located opposite each other in the Zodiac are differentiated by ascending and descending or more commonly, North and South Nodes. If the Sun and the Moon are positioned at one of these nodes, there is a solar eclipse. In Karmic Astrology the Moon Nodes have a leading role.


Mutable Signs (a.k.a. common)
The signs Gemini, Virgo, Sagittarius and Pisces. Signs associated with adaptability and flexibility.They also correspond to the Cadent Houses in the Wheel identified as part of         the Quadruplicities.
Mutual Reception (see diagram)
Two planets are said to be in mutual reception when they are in each other's signs of rulership.  The example in the diagram is Mars in Taurus and Venus in Aries.Each planet has influence over the others' sign.  Referring to one directs you to the other and then refers you back to the originating planet. Much like an endless loop. Because they are in each other signs they mutually support each other.
See Imum Coeli


Natal Chart see also Horoscope
A chart of the solar system based on the Birth Data of an individual.


Natural Houses or Flat Chart
The display of the horoscope wheel houses beginning with Aries as the first house        cusp then Taurus, Gemini, etc. in order, continuing counter clockwise until the 12th        house,  Pisces, meets the first house, Aries.Clickable Reference Map


The point of interception between a planet's orbit and the ecliptic. See also Moon Nodes


North Node
see Moon Nodes


A minor aspect between two planets or points that measures 40°. Some interpretations include brooding, realization and/or redemption. The glyph for the Novile varies according to the software program. Some just use the capital "N" and others have more elaborate symbols as Novile aspect glyph. (See Legend)


Usually referred to when the Moon eclipses another object in the sky particularly a smaller object from our view on Earth. The word is derived from the Latin root "occult" which has nothing to do with the supernatural and simply means "to conceal or hide". An animated example can be viewed here. Some Astrologers interpret according to what the Moon is eclipsing and for how long.
An aspect representing an angular difference of 180 degrees or a situation where two planets are directly across a chart from each other. Generally this can cause difficulty and discord.


The difference between an exact aspect and the actual aspect. It also describes the maximum difference where an aspect still takes place. This is the amount allowed on either side of an aspect to be considered valid. For example: a square is an aspect of 90°. If an aspect falls within 85° to 95° of each other it would be considered "in square." Individual astrologers assign the orb for the chart based on their own research and data. This varies from one astrologer to the other.


An aspect in declination where two planets are in the same degree (with an orb of 1 degree), both North or both South of the celestial equator. Read by most astrologers as similar to a conjunction.


Part of Fortune
Arabian part most commonly used by astrologers. Found by subtracting Sun's position from the sum of the Ascendant and Moon positions in degrees. Suggest fortunate circumstances.


Planet positioned in a sign where it posesses no essential dignity. It is neither dignified nor debilitated.  It is a planet that seems to be independant of others. In interpretation in Horary Astrology, the astrologer determines if it could be a debility by where it is placed in degrees and relationship to angles of specific houses as appropos to the question.  Planets that enjoy mutual reception can not be considered peregrine. The simple determination on whether or not a planet is peregrine is if it is unaspected.
Personal Planets (inner planets)
Mercury, Venus and Mars are considered the Personal or Inner Planets for purposes of interpretation. 
Personal Points
The assigned points in a horoscope that are important to the interpretation as a whole but are not necessarily planets or the luminaries. An example of a personal point would be the Ascendant and the Midheaven (M.C) and often are the points identified by the angles of the horoscope.

Spanish Monk. Placidus de Tito, 17th century. Creator of the Placidus House System. One of the most commonly used house systems today.


From the Greek "Planetes" or the wanderer. Describes any body that appears, from Earth, to move.


The planets in Astrology are considered the TEN planets: Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. However, this is an astronomical error because the Sun and Moon are not considered planets by the strictest definition. This definition of the planets dates back to the times when the Earth was considered the center of Universe. The Sun and the Moon are considered the Luminaries or Lights in astrology although treated as planets. It is important to note that western astrology has extended astronomical discoveries to the science. Chiron is now treated as a Planet although considered a planetoid or rogue asteroid between Saturn and Uranus. Asteroids alone are now considered part of the equation in erecting a chart for individual. The science of Astrology progresses along side the science of Astronomy.


The slow advancement of the fixed-star heavens through the movement of the Earth's axis. Therefore, the constellations, which gave the signs of the zodiac their names, move another 1° every 72 years. The result is the advancement of the firmament for the length of an astrological sign (30°) every 2160 years. This movement is designated in Astrology as new era or age (e.g. Aquaria Age). As a result western Astrology sees the constellations as only donors of their name to the science, precessions are not as emphasized in the western practice of Astrology.


Predictive Astrology see Current Patterns.


Prime Meridian
The line of longitude that passes through Greenwich, England, and that is the zero line for expressing longitude on the Earth's surface.
Term used for advancing planets and house cusps from birth to a second point in time. Usually one day for each year. The systems of studying current patterns that move the chart symbolically forward or backward according to one unit of time equated with another. The most common form, secondary progression, is the usual one day for each year. Thus if a person is now 30 years old, the positions 30 days after birth are considered symbolic of that of the 30th year. Other systems of progressions equate a lunar month with a year, ad with a lunar month and so on.


Ptolemaic Aspects
The aspects that are considered MAJOR. Opposition, Trine, Square and Sextile as well Conjunction.
The qualities of the astrological zodiac signs defined as either, Cardinal, Mutable or Fixed. Also describing the Natural Houses qualities. Also known as Modes.
German Astrologer, (Johannes Müller) 15th century, who devised the Regiomontanus House System. The House system most often used in Classical Horary Astrology.


Relative House or Relationship Houses
Houses 3, 7 and 11. Associated with the Air Signs.Wheel Map


Apparent backward motion of a planet as appearing from the Earth. Thought to cause difficulty in a person's chart. Click here for an animation of what astronomically is happening!


Return Chart
A chart calculated for the moment a planet returns to the same position it held in the Natal Chart. Used to interpret current patterns for the time period signified by the return, e.g. Solar Return for one year. Lunar Return for one month.
Rising Sign
Another word for Ascendant. For more information to this page.


Each astrological sign and house is governed by at least one planet (or body). The planet is said to rule that sign or house. In the opposing sign and/or house, the planet is in its detriment or fall. Example: Aries is ruled by Mars and is opposite of Libra. Mars in Libra would be considered in detriment. A planet that is positively placed is considered exalted if in the sign that is complementary. Example: Mars in Aries would be considered dignified or dignity. It would be exalted in Capricorn and Fall in Cancer the opposite of the exaltation. (see Table of Planetary Rulership)


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