Maria Kirch: The Woman Who Discovered a Comet

In 1702, a woman in Berlin was the first to spot an unknown comet through a telescope. However, the discovery was attributed to her husband, as the academic world was not prepared to accept that a housewife could conduct groundbreaking observations. Maria Margarethe Kirch spent her life proving that gender has no bearing on one’s ability to understand the cosmos.

The Pastor’s Daughter Who Preferred Stars to Catechism

Maria was born in 1670 in the small village of Panitzsch near Leipzig, the daughter of a Lutheran clergyman. Her father held views rare for the era, believing that girls deserved the same education as boys. Thanks to him, Maria received a solid educational foundation, though official universities remained closed to her.

At just thirteen, she lost both her parents. The orphaned girl came under the care of her brother-in-law, and soon after met a man who changed her life. Christoph Arnold, known as the „peasant astronomer,” lived nearby in Sommerfeld and became famous for discovering a passing comet. Although he lacked formal education, he possessed something more valuable—a true passion for the sky and a talent for sharing knowledge.

Arnold took young Maria first as an informal pupil, then as an assistant. She lived with his family, learning practical astronomy.

At that time, the path to becoming an astronomer was not strictly defined. There were no standard curricula or mandatory diplomas. Most sky watchers were educated in medicine, law, or theology, and observations were mainly conducted outside the bounds of universities.

Marriage as a Gateway to Science

It was in Arnold’s home that Maria met Gottfried Kirch, one of the greatest German astronomers of the era. Thirty years her senior, Gottfried studied at the University of Jena and learned from the legendary Johannes Hevelius. In 1692, the pair married, forming a union that was both a partnership in marriage and in science.

For Maria, marriage meant more than a change of surname. In a world where women could neither study nor work independently, marrying an astronomer was the only way to continue her research.

Gottfried taught his wife advanced astronomy, just as he taught his sister and all his children from an early age. The couple had four children, each of whom followed in their parents’ footsteps into astronomical careers.

The couple’s collaboration was harmonious. Maria performed complicated calculations, gathered observational data, and assisted her husband in daily work. Gottfried gained not only a life partner but also a competent assistant. For Maria, it was a way to pursue her passion in a time when women’s independent scientific work was nearly impossible.

Breakthrough in Berlin and the Price of Being a Woman

The year 1700 brought a significant change for the Kirch family. Elector Frederick III of Brandenburg, later King of Prussia, appointed Gottfried the Royal Astronomer in Berlin. The position entailed prestige and responsibility for producing official calendars. Frederick introduced a calendar monopoly, and the proceeds were intended to finance astronomers and members of the newly established Berlin Academy of Sciences.

Moving to the capital brought Maria new opportunities, but also a painful awareness of the limitations imposed by her gender. In 1702, during nighttime observations, she discovered a previously unknown comet. This was a major achievement, but initially, Gottfried claimed the discovery as his own. Only later did he publicly acknowledge that it was his wife who had first spotted the celestial visitor. The scientific world met this news with mixed feelings.

Maria was admitted to the Berlin Academy, an unusual distinction. At the same time, she was denied employment at the observatory. The official reason cited was her lack of formal education, but the real obstacle was her gender. In 1709 and 1712, she published her own papers on the conjunctions of the Sun with Saturn, Venus, and Jupiter, earning respect in astronomical circles. Nevertheless, the doors to a steady academic position remained closed.

Fighting Alone After Her Husband’s Death

When Gottfried Kirch died in 1714, Maria faced the greatest challenge of her life. She had lost not just a husband, but her official standing to conduct research. Without a man by her side, her position in the scientific community became even more precarious. She remarried Henrik von Bem, but this did not solve her professional difficulties.

Her salvation came through cooperation with her son Christfried, who joined the Berlin Academy in 1716. Maria also performed calendar calculations at the private observatory of Baron von Krosigk. She worked tirelessly until the end of her life, passing away in Berlin on December 29, 1720, at only fifty years of age.

Maria Kirch’s legacy goes far beyond her publications and discoveries. She was one of the first women to prove that astronomy was not solely a male domain. Before her, Maria Cunitz, Elisabeth Hevelius, and Maria Clara Eimmart had worked in the Holy Roman Empire, but Kirch was one of the few to publish under her own name. In modern times, she has been honored by having an asteroid (9815) Mariakirch named after her. The stars she once studied so diligently will forever bear her name.