13 signs is creating ancient astrology with modern astronomy
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We're taking astrology back to move it forward

Two thousand years ago, astrologers and astronomers were united in their insistance on the accuracy of their planetary observations.Then there was a fork in the road, and while astronomy remained focussed on accuracy, astrology got lost, and decayed into the pseudo-science it is today.

That’s because virtually all western astrologers use the “tropical” system to calculate their horoscopes, even though it causes a 32-degree rift between them and reality. That’s why most people don’t know their true sign. Most of us think we're the sign after our real sign.

The tropical horoscope is a hot mess. All the birth days are significantly off kilter. Things really get out of sync for those born from November 30 to December 17, since an entire sign is missing! Tropical astrologers arbitrarily truncated the Zodiac from 13 to 12 signs, banning the female healer Ophiuchus from her rightful place. The 13 sign Zodiac isn’t an anomaly, it is routinely used by NASA for all its space observations. Only the hapless western astrologer is unable to see this constellation!

13 sign astrology restores Ophiuchus, and is 100% astronomically accurate, it is the perfect blend of modern science and ancient wisdom. Today's 13 sign system was developed by astronomer Walter Berg to make astrology work again. With 13 sign astrology, the venerable archetypes click into their rightful places and light up the darkness!

We started our website 13sign.com in 2010, and we are 100% dedicated to making a better astrology available to all. We take no advertising, and depend on our patrons and clientele to keep us going. We offer a complete array of natal readings, transit interpretations, compatibility reports, and more, at reasonable rates. We're on the threshold of a great leap forward in astrology, and we welcome your support  Join us!

Meet our 13 sign astrologers

Subscribe to our free newsletter

Tiers
A little goes a long way
$1 or more per month 1 patron
Support 13 sign astrology; we need it.
13 Sign Birth Chart
$5 or more per month 0 patrons
Includes Ophiuchus and the Black Moon
Get a Coffee Mug
$15 or more per month 0 patrons
Coffee mug emblazoned with your sign (Ophiuchus shown)
Become one of us--5 online classes in 13 sign astrology
$30 or more per month 0 patrons
We'll teach you how 13 sign astrology works, and how to create your own accurate horoscopes
Goals
$1 of $500 per month
With your help, we can bring 13 sign astrology out of the shadows and help more people see the light
1 of 1

We're taking astrology back to move it forward

Two thousand years ago, astrologers and astronomers were united in their insistance on the accuracy of their planetary observations.Then there was a fork in the road, and while astronomy remained focussed on accuracy, astrology got lost, and decayed into the pseudo-science it is today.

That’s because virtually all western astrologers use the “tropical” system to calculate their horoscopes, even though it causes a 32-degree rift between them and reality. That’s why most people don’t know their true sign. Most of us think we're the sign after our real sign.

The tropical horoscope is a hot mess. All the birth days are significantly off kilter. Things really get out of sync for those born from November 30 to December 17, since an entire sign is missing! Tropical astrologers arbitrarily truncated the Zodiac from 13 to 12 signs, banning the female healer Ophiuchus from her rightful place. The 13 sign Zodiac isn’t an anomaly, it is routinely used by NASA for all its space observations. Only the hapless western astrologer is unable to see this constellation!

13 sign astrology restores Ophiuchus, and is 100% astronomically accurate, it is the perfect blend of modern science and ancient wisdom. Today's 13 sign system was developed by astronomer Walter Berg to make astrology work again. With 13 sign astrology, the venerable archetypes click into their rightful places and light up the darkness!

We started our website 13sign.com in 2010, and we are 100% dedicated to making a better astrology available to all. We take no advertising, and depend on our patrons and clientele to keep us going. We offer a complete array of natal readings, transit interpretations, compatibility reports, and more, at reasonable rates. We're on the threshold of a great leap forward in astrology, and we welcome your support  Join us!

Meet our 13 sign astrologers

Subscribe to our free newsletter

Recent posts by 13 signs

Tiers
A little goes a long way
$1 or more per month 1 patron
Support 13 sign astrology; we need it.
13 Sign Birth Chart
$5 or more per month 0 patrons
Includes Ophiuchus and the Black Moon
Get a Coffee Mug
$15 or more per month 0 patrons
Coffee mug emblazoned with your sign (Ophiuchus shown)
Become one of us--5 online classes in 13 sign astrology
$30 or more per month 0 patrons
We'll teach you how 13 sign astrology works, and how to create your own accurate horoscopes