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New American Ephemeris for the 21st Century, The

Product no.: 0-9762422-3-0
The Michelsen Memorial Edition, compiled and programmed by Rique Pottenger and published by the Michelsen Trust, is based on the earlier work of Neil F. Michelsen.

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Publisher's Synopsis

2006 is the 30th Anniversary of the first publication of The American Ephemeris, 1931-1980 & Book of Tables. The originator of this first fully computer-generated ephemeris, the late Neil F. Michelsen (1931-1990), would have been 75 this year. Neil's programming and first printing of his ephemeris provided astrologers everywhere with highly accurate data for their calculations at an affordable price.

Now, 30 years later and 16 years after Neil's passing, The American Ephemeris, published in multiple versions and consistently updated for accuracy, still retains its standing as the most popular ephemeris internationally.

New Phenomena Data in the 2006 American Ephemeris

  • Despite the IAU designation of the planet named for the Lord of the Underworld as "dwarf," Pluto stays in the daily planetary line-up.
  • Ceres joins the planetary line-up, inserted in her orbital pattern between Mars and Jupiter-and a warm welcome to our new planetary Goddess! Since IAU has promoted her from asteroid to "dwarf planet," it's our bet that interest in her will spike, even among those astrologers who haven't yet routinely studied asteroids.
  • The third designated "dwarf," UB313, nicknamed "Xena" but recently given the official name of Eris, is so far beyond Pluto that her position changes no more than a few minutes from one month to the next, so she has been added to the AstroData box showing monthly positions. Since she as yet has no glyph, she is listed by name.
  • Rique has made improvements in the computer generating program that enable finding double ingresses in a single day, plus more accurate station times.
  • A new formula has increased the accuracy of the monthly position of the Galactic Center.
  • Also added to monthly positions (along with Chiron) are the three (other than Ceres) of four major asteroids studied by astrologers: Pallas, Juno and Vesta.
  • Phenomena in the Astro Data column are now sorted by time as well as by date.
  • Planetary Ingress data includes R if a planet is retrograde when it ingresses.

"Based on the earlier work of Neil F. Michelsen in 1976, The Michelsen memorial edition of The New American Ephemeris For The 21st Century: 2000-2100 at Midnight by Rique Pottenger is newly updated and expanded with the latest Jet Propulsion Laboratory data, several other new features, all while retaining familiar data and a format relied upon by astrologers world wide.

The New American Ephemeris For The 21st Century is a 624-page treasury of information, example and instruction that is especially recommended to dedicated astrologers and should prove to be a cornerstone of any personal, professional, and academic library's Astrological Studies reference collection."     ~Midwest Book Review


Neil F. Michelsen, founder of Astro Computing Services and ACS Publications, contributed his programming expertise, astronomical knowledge, compassion and wisdom to the field of astrology for almost 20 years.

He served as Chairman for the National Council for Geocosmic Research and provided computer, technical, financial and personal support to many astrological researchers (including the Gauquelins and John Addey).

His American Ephemeris for the 20th Century is the most widely read ephemeris in the world, and all of his twenty other books and tables are noted for being the most accurate refrences available.

Author Michelsen, Neil
Coauthor Michelsen, Rique
Book Type Trade Paperback
Page Count 624 pp.
Publisher Starcrafts Publishing 2006
Series American Ephemeris
Browse these categories as well: Ephemerides, Noteworthy Releases 2006

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