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Johannes Kepler was a famous German astronomer, mathematician and astrologer. Read on to learn more about Johannes Kepler’s profile, childhood, life and timeline in this biography.

# Johannes Kepler

Also Listed In: Mathematicians, Astronomers

Famous as: Astronomer, Mathematician & Astrologer

Nationality: German

religion: Lutheran

Born on: 27 December 1571 AD 27th December Birthdays

Zodiac Sign: Capricorn Capricorn Men

Born in: Weil der Stadt

Died on: 15 November 1630 AD

place of death: Regensburg

father: Heinrich Kepler

mother: Katharina Guldenmann

siblings: Matthias, Christoph

Spouses: Susanna Reuttinge, Barbara

children: Katharina Kepler, Heinrich Kepler, Friedrich Kepler, Sebald Kepler, Cordula Kepler, Ludwig Kepler, Margareta Regina Kepler, Susanna Kepler, Fridmar Kepler, Hildebert Kepler

education: Tübinger Stift

discoveries / inventions: Refracting Telescope

Works & Achievements: He is known for Kepler's laws of planetary motion and the Kepler conjecture. He also discovered the Kepler's Star — a supernova in 1604.

Johannes Kepler was a famous German mathematician and astronomer who discovered the ovoid movements of the planets around the sun. The first astronomer to state the fundamental laws of planetary motion, Kepler was also known for his works in geometry, optics and philosophy. His significant achievements have been the discovery of the Kepler's Star, the 'Astronomia Nova' and also the 'Kepler Conjecture'. For being one of the prominent figures in astronomy, a lot of astral elements were named after him such as 'Kepler's crater on Mars', 'The Kepler Moon crater' etc. Apart from astronomy, Kepler concentrated on mathematics and the evolution of geometry. He came up with 'Kepler Triangle' and the 'Kepler Problem', both of which, published in three parts, studied various aspects of geometric progression, characterized by the 'Pythagorean Theorem' and the 'Golden Ratio'. As a part time amusement, he even studied astrology and published a few works on the subject such as 'De Fundamentis Astrologiae' and 'Dissertatio cum Nuncio Siderio'. He worked for Tycho Brahe, a Danish nobleman and even served as an advisor to Emperor Rudolph II during his lifetime. Scroll down to learn more about this interesting personality.

**Childhood & Early Life**

**Education**

**Career**

**Supernova Observation**

**Personal Life**

**Death & Legacy**

**Major Works**

- Astronomia Nova
- Astronomiae Pars Optica
- Mysterium Cosmographicum
- Somnium
- A New Year’s Gift of Hexagonal Snow
- Kepler Conjecture
- Law of Continuity
- Kepler’s Laws of Planetary Motions
- Epitome of Copernican Astronomy
- Harmonices Mundi
- Rudolphine Tables

JOHANNES KEPLER TIMELINE

Kepler was born on December 27 in Weil der Stadt, Wurttemberg, Germany.

Graduated from the University of Tubingen.

Became professor of mathematics at the Protestant school in Graz.

Married Barbara Muller.

He was appointed as the Imperial mathematician and advisor to Emperor Rudolph II.

Published ‘Astronomiae Pars Optica’.

Published the ‘Astronomia Nova’, one of his most prized works.

Married Susanna Reuttinger after the death of his first wife.

Published Epitome of Copernican Astronomy (all three volumes)

Completed the Rudolphine Tables—one of his major works.

Died on 15^{th} November in Regensburg, Germany.

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