Marcus Reynolds

Marcus Reynolds is a professional astrologer and trained astronomer based in Austin, Texas. With dual expertise in both astronomical science and traditional astrology, Marcus occupies a rare niche at the intersection of empirical observation and symbolic interpretation — ensuring that the mathematical foundations of astrological tools are as precise as the interpretive frameworks built on top of them.

Marcus earned his Bachelor of Science in Astronomy from the University of Texas at Austin, where he studied celestial mechanics, orbital computation, and positional astronomy. During his senior year, a chance encounter with the work of astrologer-astronomer Johannes Kepler sparked his interest in astrology’s historical roots in legitimate astronomical practice.

After graduation, Marcus pursued professional astrology training at the Avalon School of Astrology while simultaneously working as a planetarium presenter at the Austin Science Center. This unique career path gave him both the technical chops to validate planetary position algorithms and the narrative skills to communicate complex astrological concepts clearly.

Over the past decade, Marcus has focused on developing and validating astrological calculation algorithms, ensuring that computer-generated birth charts match the accuracy of hand-calculated ephemeris data. He has personally verified the MyBirthChart calculation engine against the Swiss Ephemeris, JPL Horizons, and manually computed positions, confirming accuracy to within 0.01° of arc for all major bodies.