Midheaven

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The Midheaven is noted as Mc in this Natal chart, close to the top

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According to modern astrologers, the Midheaven () or Medium Coeli is the point in space where the ecliptic crosses the Meridian (line of longitude) in the south on northern hemisphere (and the point in north in the southern hemisphere).

According to Ptolemy, the Medium Coeli is the point which is upper square from ascendant, eg. zenith by modern astronomy vocabulary.

[edit] Calculation

tan B = tan(A).sec(w)

where B = midheaven,

A = local sidereal time in degrees,

w = inclination of Earth's equatorial plane to the ecliptic or obliquity of the ecliptic. For values referred to the standard equinox J2000.0 use 23.4392911°, for J1950.0 use 23.4457889°.

[edit] In astrology

The Midheaven is one of the most important angles in the birth chart. It traditionally indicates career, status, aim in life, aspirations, public reputation, and our life goal.

In the Alcabitius, Placidus, Koch, Campanus, Regiomontanus, Meridian and Krusinski house system, the local meridian passing through Midheaven forms the cusp of the 10th house. In the equal house system Midheaven can be found in the 9th, 10th or 11th house. The other end of this axis, 'beneath' the earth, is the point known as the IC or Imum Coeli.

Whilst the Midheaven is traditionally thought of as indicating a goal in terms of career or working life, it is not confined to this type of goal, and can indicate very personal or spiritual goals as well.

The individual will identify with and admire the qualities of the astrological sign on the Midheaven. The sign on the cusp of the Midheaven quite often indicates what kind of career, vocation, or reputation in life the native will pursue. It also reflects how an individual reacts to stressful situations.

The Midheaven quite often refers to a parent, quite often the mother, but sometimes the father. The other parent is sometimes represented by the angle at the opposite end, the Imum Coeli, or IC.

[edit] Combinations of Ascendant and Midheaven signs

Because of the obliquity of the Earth's axis relative to the ecliptic, away from the equator some signs take much longer to cross the eastern horizon than do others. In the northern hemisphere, the signs from Cancer through Sagittarius take longer to ascend than the signs from Capricorn through Gemini, whilst in the southern hemisphere the reverse is the case.

However, the Midheaven sign for a given sidereal time will remain the same regardless of the latitude of the location for which the chart is cast. This means that, for different latitudes, a different sign can be ascending for the same Midheaven sign. For equatorial latitudes, the sign on the Midheaven will generally be three signs before the sign on the Ascendant, but at very high latitudes this can vary between one sign before and five signs before the sign on the Ascendant. The greatest separations between Ascendant and Midheaven occur when short ascension signs (Aquarius, Pisces, Aries) are on the Midheaven, and the smallest when long ascension signs (Virgo, Libra, Scorpio) are on the Midheaven.

Ascendant sign	Midheaven signs for middle northern latitudes	Midheaven signs for high northern latitudes	Midheaven signs for southern latitudes
Aries	Capricorn	Capricorn	Capricorn, Aquarius
Taurus	Capricorn, Aquarius	Capricorn	Aquarius, Pisces
Gemini	Aquarius, Pisces	Capricorn, Aquarius	Pisces, Aries
Cancer	Pisces, Aries	Aquarius, Pisces	Aries, Taurus
Leo	Aries, Taurus	Pisces, Aries, Taurus	Taurus, Gemini
Virgo	Taurus, Gemini	Taurus, Gemini	Gemini
Libra	Cancer, Leo	Cancer, Leo	Cancer
Scorpio	Leo, Virgo	Leo, Virgo, Libra	Cancer, Leo
Sagittarius	Virgo, Libra	Libra, Scorpio	Leo, Virgo
Capricorn	Libra, Scorpio	Scorpio, Sagittarius	Virgo, Libra
Aquarius	Scorpio, Sagittarius	Sagittarius	Libra, Scorpio
Pisces	Sagittarius	Sagittarius	Scorpio, Sagittarius