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How to Calculate the Sun/Moon Midpoint

How to Find the Sun/Moon Midpoint.

The midpoint of the Sun and Moon in a natal chart is a highly sensitive point. It is calculated by adding the position of the Sun with the Moon and dividing by two, so it is literally the midpoint between the Sun and the Moon!

Calculating the Sun/Moon Midpoint:

Determining the Sun/Moon midpoint () of any chart involves taking the midpoint between the Sun and the Moon.

For example, if the Sun is at 25 Virgo 21 (25°21) and the Moon is at 28 Pisces 25 (28°25), we can calculate the Sun/Moon midpoint as follows:

When working with midpoints, the best technique to use is to first convert the positions of the planets to the 360 degree zodiac.

The following table will help you convert the degrees of the zodiac into 360 degree format:

 Aries 0 Taurus 30 Gemini 60 Cancer 90 Leo 120 Virgo 150 Libra 180 Scorpio 210 Sagittarius 240 Capricorn 270 Aquarius 300 Pisces 330

To convert 25 Virgo 21 to 360 degree format, we simply add 25 degrees and 21 minutes to the starting degree of Virgo (150 degrees as shown in the table above). We then get:

Sun is 175 degrees 21 minutes.

To convert 28 Pisces 25 to 360 degree format, we add 28 degrees and 25 minutes to the starting degree of Pisces (330 degrees as shown in the table above). We then get:

Moon is 358 degrees 25 minutes.

In order to determine the midpoint of the Sun and Moon, we must add the two points together and then divide by two. A midpoint is literally the point midway between two points.

Therefore, we must add 175 21 and 358 25. We get 533 degrees and 46 minutes. Dividing this figure in two, and we arrive at 266 degrees and 53 minutes.

We then convert this figure back to zodiac format. Since 266 degrees is 26 degrees beyond the Sagittarius starting point, we come to the point 26 Sagittarius 53 (26°53).

Because in this example the Sun and Moon are more than 180 degrees away when we travel through the zodiac in logical order, common practice is to convert the midpoint to 26 Gemini 53 (the opposite point of 26 Sagittarius 53), simply because it is the closer midpoint between the Sun and the Moon. This is not highly significant in midpoint work, simply because oppositions and conjunctions are not considered to be much different when we deal with midpoints.

Therefore, = 26°53

Simple Example:

You can round off the positions of the Sun and Moon to the nearest degree in order to simplify the calculation.

For example, if the Sun is 16 degrees Leo 54 (16°54) and the Moon is 8 degrees Cancer 15 (8°15), you can round the two to the nearest degree:

Add 17 Leo and 8 Cancer.

17 Leo = 120 + 17 = 137

8 Cancer = 90 + 8 = 98

137 + 98 = 235

235 divided by 2 = 117.5 degrees

117.5 degrees converts to 27.5 degrees Cancer (117.5-90).

Therefore, = 27°30

Back to Sun/Moon midpoint.

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