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Tycho Brahe

astronomy
SN 1987A – The Best Studied Supernova of All Time

SN 1987A – The Best Studied Supernova of All Time

Tabea Tietz
On February 24, 1987, SN 1987A, a supernova in the outskirts of the Tarantula Nebula in the Large Magellanic Cloud occurred visible to the naked eye. It was the closest observed supernova since Kepler’s Supernova  SN 1604, which occurred in the Milky Way itself.[5] SN 1987A – The Best Studied Supernova of all Time Due to the relative proximity to Earth, SN 1987A became one of the best studied supernovae of all…
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astronomy
John Dreyer and the New General Catalogue of Nebulae and Clusters

John Dreyer and the New General Catalogue of Nebulae and Clusters

Tabea Tietz
On February 13, 1852, Danish-Irish astronomer John Louis Emil Dreyer was born. Dreyer’s major contribution was the monumental New General Catalogue of Nebulae and Clusters of Stars (based on William Herschels Catalogue of Nebulae)[5], the catalogue numbers of which are still in use today. Education and Assistant to Lord Rosse John Louis Emil Dreyer was born in Copenhagen, Denmark, the son of Lieutenant General John Christopher Dreyer, back then the Danish Minister for…
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astronomy
Pierre Gassendi and his Trials to reconcile Epicurean Atomism with Christianity

Pierre Gassendi and his Trials to reconcile Epicurean Atomism with Christianity

Harald Sack
You have read the title? I guess, you might be scared now, but Pierre Gassendi was a decent fellow… On January 22, 1592, French philosopher, priest, scientist, astronomer, and mathematician. Pierre Gassendi was born. Gassendi revived Epicureanism as a substitute for Aristotelianism, attempting in the process to reconcile Atomism‘s mechanistic explanation of nature with Christian belief in immortality, free will, an infinite God, and creation.He clashed with his contemporary Descartes on the possibility…
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astronomy
Simon Marius and his Astronomical Discoveries

Simon Marius and his Astronomical Discoveries

Harald Sack
On January 20 (or January 10 according to the old Julian calendar), 1573, German astronomer Simon Marius was born. Marius was pupil of Tycho Brahe, one of the earliest users of the telescope and the first in print to make mention the Andromeda nebula. He studied and named the four largest moons of Jupiter that he claimed to have them discovered independently and even before Galileo. Simon Marius’ Early Years Simon Marius was…
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geography
The Most Accurate Instruments of Gemma Frisius

The Most Accurate Instruments of Gemma Frisius

Harald Sack
On December 9, 1508, physician, mathematician, cartographer, philosopher, and instrument maker Gemma Frisius was born. He created important globes, improved the mathematical instruments of his day and applied mathematics in new ways to surveying and navigation. Gemma Frisius – Youth and Education Gemma Frisius was born Jemma Reinierzoon in Dokkum, Friesland, a coastal province in northern Netherlands, of poor parents who died when he was young. His nom de plume Gemma Frisius is a…
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astronomy
Nicolas-Claude Fabri de Peiresc and the Discovery of the Orion Nebula

Nicolas-Claude Fabri de Peiresc and the Discovery of the Orion Nebula

Tabea Tietz
Around November 25, 1610, French astronomer and savant Nicolas-Claude Fabri de Peiresc “discovered” the Orion Nebula, a diffuse nebula situated south of Orion’s Belt in the constellation of Orion. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. “But see, Orion sheds unwholesome dews; Arise, the pines a noxious shade diffuse; Sharp Boreas blows, and nature feels decay, Time conquers all, and we must…
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astronomy
The Planetary Tables of Erasmus Reinhold

The Planetary Tables of Erasmus Reinhold

Harald Sack
On October 22, 1511, German astronomer and mathematician Erasmus Reinhold was born. He is considered to be the most influential astronomical pedagogue of his generation. Furthermore, he is best known for his carefully calculated first set of planetary tables applying Copernican theory, published in 1551. Erasmus Reinhold Background Erasmus Reinhold was born and died in Saalfeld, Thuringia, Germany. His father Johannes Reinhold was a tax collector. In 1530 went to Wittenberg to study at…
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astronomy
Regiomontanus – Forerunner of Modern Astronomy

Regiomontanus – Forerunner of Modern Astronomy

Harald Sack
On June 6, 1436, German mathematician, astronomer, astrologer, translator, instrument maker and Catholic bishop Johannes Müller aus Königsberg was born, better known under the Latinized version of his name as Regiomontanus. His diligent and accurate observations, measurements and recordings paved the way for modern astronomers such as Tycho Brahe [4] and Nikolaus Copernicus.[5] Johannes Müller from Königsberg Johannes Müller from Königsberg, a small town in Lower Franconia, Germany, grew up in a well situated…
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astronomy
Francis Baily and the Baily Beads

Francis Baily and the Baily Beads

Harald Sack
On May 15, 1836, English astronomer Francis Baily for the first time observed the so-called ‘Baily’s beads‘ during an eclipse of the Sun. For sure you know the effect, although you might not have seen it with your own eyes in nature. But, numerous photographs, pictures, and videos have been published, where the phenomenon can be watched. So what are Beailey’s beads? Solar Eclipse and Baily Beads The Baily’s beads effect is a feature of…
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astronomy
Ole Rømer and the Speed of Light

Ole Rømer and the Speed of Light

Tabea Tietz
On October 5, 1644 (or according to the old julian calendar September 25), Danish astronomer Ole Christensen Rømer was born. He became known by the first proof published in 1676 that the speed of light is finite and not infinite, respectively by the guidance, how the speed of light can be calculated by observation of the Jupiter moons. Ole Rømer – Early Years Ole Rømer was born in Århus, Denmark, to merchant and skipper…
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