Johannes Kepler Biography – Facts, Childhood, Family, Life, Wiki, Age, Work

You are currently viewing Johannes Kepler Biography – Facts, Childhood, Family, Life, Wiki, Age, Work
  • Birth date: the 27th of December 1571
  • Died At Age: 58
  • Sun Sign: Capricorn
  • The Country of Birth: Germany
  • Born in: Weil der Stadt, Germany
  • Famous as: Astronomer, Mathematician & Physicist
  • Spouse/Ex-: Barbara, Susanna Reuttinge
  • father: Heinrich Kepler
  • Mother: Katharina Guldenmann
  • siblings: Christoph, Matthias
  • children: Cordula Kepler, Fridmar Kepler, Friedrich Kepler, Heinrich Kepler, Hildebert Kepler, Katharina Kepler, Ludwig Kepler, Margareta Regina Kepler, Sebald Kepler, Susanna Kepler
  • Died on November 15th 15th, 1630
  • place of death: Weil der Stadt, Germany
  • discoveries/inventions: Refracting Telescope
  • education: Tubinger Stift

Johannes Kepler was a famous German mathematician and Astronomer who discovered the ovoid motions of the planets orbiting the sun. The first astronomer to define the basic laws of planetary motion Kepler was also famous for his work in the fields of the fields of optics, geometry, and philosophy. The most notable achievements of his work were the discovery of Kepler’s Star, the ‘Astronomia Nova’, and the Kepler Conjecture. Because he was one of the most prominent names in astronomy, a many Astral elements have been named in honor of his name, including ‘Kepler’s crater on Mars”, “The Kepler moon crater’ and so on. In addition to the field of astronomy, Kepler concentrated on mathematics and the development of geometrical concepts. He developed the “Kepler Triangle” and Kepler Problem of which, as three separate parts explored different dimensions of geometry which was characterized by the Pythagorean Theorem as well as the ‘Golden ratio’. For a leisure activity that was part-time He also was an astrologer and published several pieces on the subject including ‘De Fundamentis astrology as well as ‘Dissertatio cum the Nuncio’s Siderio’. He was employed by Tycho Brahe who was a Danish nobleman, and was an advisor to the Emperor Rudolph II during his lifetime. Read on to find out more about this fascinating persona.

Childhood and Early Life

Johannes Kepler was born on the 27th of December 1571 to Heinrich Kepler and Katharina Guldenmann in the Stuttgart region of Germany. The family was thought to be extremely wealthy, however at the time Kepler became a baby, money of the family had plummeted dramatically. Kepler’s father Heinrich Kepler earned his living as a mercenary. He quit the family at the age of Johannes was just five years old. older. The mother of Johannes, Katharina Guldenmann worked as a herbologist and healer who eventually tried witchcraft as a way to earn money. The story goes Kepler was a Kepler was a deformed boy who was physically and mentally weak as a kid.

In his young years, he took on an interest in math and frequently impressed people with his math skills. Kepler was also exposed to astronomy at a young age, and his enthusiasm for the subject stuck throughout the remainder of his existence. A few times, Kepler observed comets and eclipses with his family however, his vision issues as well as his weakened hands caused by small-pox left Kepler at an advantage when it came to observing aspects of astronomy.


In 1589, following the completion of the grammar as well as Latin high school Kepler went to study at in the Tubingen Stift in Tubingen University. University of Tubingen. This was where he demonstrated his ability as a mathematician. He also earned the title of being a gifted Astrologer. Kepler also studied philosophy and theology with two famous people -two of them – Vitus Muller, and Jacob Heerbrand. While at The University of Tubingen, Kepler studied his Copernican along with the Ptolemaic system of the motion of planets. The Copernican system was his belief. system , and believed his belief that there was a Sun was the main source of power for the universe. Near the end of his schooling, Kepler was keen on becoming a minister, but abandoned his plans when the chance came to accept the position of professor of astronomy and mathematics within Graz, a Protestant college in Graz. Kepler was appointed in 1594 at the age of 23 years old.


While teaching in the Protestant school in Graz, Kepler stated that the ‘epiphany’ he experienced was regarding the cosmic design of the that is the Universe. In defense of his Copernican beliefs, Kepler demonstrated the periodic connection between the planets Saturn in the zodiac, and Jupiter within the constellation of Zodiac. Kepler also discussed the polygonal ratios of the planets and said that he was certain of the geometrical structure of the universe.

Many of Kepler’s theories are based on the Copernican theory stemmed from his belief in the relationship between philosophical and scientific theories regarding the nature of our universe. So, Kepler came up with his first, and possibly perhaps one of his most controversial publications named ‘Mysterium Cosmicum’ in 1596. This established Kepler’s credibility as an accomplished astronomer. Kepler modified a few of his works later on and made use of the work as a foundation for future projects. He published a second edition of “Mysterium” in 1621, enhancing and correcting the errors from the original edition.

Following the publication of “Mysterium After the publication of ‘Mysterium’, Kepler became ambitious and determined to broaden the scope of his research. He planned to write four more publications which dealt with the stationary aspect that make up the Universe, the impact of the heavens on earth, the motions of planets and the physical properties of astral objects. He even submitted his plans and work to astronomers whom he followed and revered, seeking their approval. In one of these pursuits, he made friends with Tycho Brahe and they discussed various celestial and astronomical phenomena.

In the meantime, the increasing religious tensions at the Protestant school in Graz was threatening Kepler’s job and he resigned from the school in order to work with Tycho in his study of astronomy. The 1st of January 1616, Kepler left the Graz school to join Tycho. When the pair were working together, they created and published some amazing work, such as ‘Astronomiae Paras Optica”, ‘Rudolphine Tables’, and the Prutenic Tables. They also published the Rudolphine as well as the Prutenic Tables were given to the Emperor Rudolph II. Then, Tycho died unexpectedly in 1601 and Kepler was appointed the Imperial mathematician. He was charged with the responsibility of completing the project that Tycho had envisioned. Kepler was even the primary astrological advisor for the Emperor. He also helped the emperor during times of political tension and also continued his studies in the field of astronomy. The year 1610 was when Kepler was working in collaboration alongside Galileo Galilei and even published his own observations of telescopic astronomy of satellites orbiting the planets. At the time of 1611 Kepler developed his own telescope for observations of astronomy and named it “Keplerian telescope”.

Supernova Watch

In 1604 Kepler saw a bright night star, and was astonished when Kepler saw a nebula. A supernova of this magnitude could be seen only in the span of about 800 years. It was believed that it was observed at least once during the reign of Charlemagne and also at the time of the birth of Jesus Christ. After the unique observation, Kepler addressed the star’s characteristics as an astronomer and began investigating celestial spheres. The ideas he had on parallax as well as astronomy brought Kepler to the forefront and made him a better scientist even more.

Your Life

Kepler experienced emotional apocalypse throughout his life. He was married to Barbara Muller, who was widowed twice , and had a child, Gemma. Kepler married Muller on April 27, 1597. In the initial couple’s year, Kepler had two daughters who both lost their lives in infanthood. Kepler and his wife also had three additional children over the next few years. However, Barbara’s health was declining and she died in 1612.

On October 30, 1613, Kepler remarried. The second time, he got married to the age of 24 Susanna Reuttinger after having considered 11 matches prior to her. The three first children born in this marriage died when they were infants. According to some that it was the 2nd marriage that was better one than the one before. In the midst of all these turmoil, Kepler’s mother was accused of witchcraft and was held for 14 months. Through her trial, Kepler was believed to be at her side.

Death & Legacy

Kepler passed away before experiencing Kepler’s death, but before observing the transits in the constellations of Mercury and Venus which he waited eagerly for. Kepler died on the 15th of November 1630 at Regensburg, Germany after a short period of illness. Through the years Kepler’s law was viewed with suspicion. But, over the next years, astronomers began to test Kepler’s theories, and gradually began to accept the findings of Kepler. The “Epitome of Copernican Astronomy’ was read by many astronomers , and throughout the years, it was the primary way through which Kepler’s theories were propagated.

Numerous famous scientists like Newton came up with their theories upon the basis of Kepler’s writings. Kepler was also renowned for his mathematical and philosophical work. A number of music compositions as well as operas for Kepler like “Die Harmonie der Welt” were composed by many famous composers. In 2009, to commemorate Kepler’s contribution to the field of astronomy, NASA introduced the Kepler mission’.

Major Works

  • Astronomia Nova
  • Astronomiae Pars Optica
  • Mysterium Cosmographicum
  • Somnium
  • The New Year’s present of Hexagonal Snow
  • Kepler Conjecture
  • Law of Continuity
  • The Kepler’s Laws of Planetary Motions
  • The epitome of Copernican Astronomy
  • Harmonices Mundi
  • Rudolphine Tables