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Uraniborg

6 stories from this place.

The Cabinet June 25, 2026 · Uraniborg, Hven

The Renaissance Craft Tradition That Made Tycho Brahe's Replacement Nose and a Thousand Other Lost Faces

Tycho Brahe wore a metal prosthetic nose for the entire adult portion of his life after losing the original to a student duel in 1566. The Renaissance prosthetics tradition that produced his nose was a substantial European craft specialism that survived from the 15th to the 19th century before being substantively replaced by 20th-century plastic surgery.

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The Footnote June 24, 2026 · Uraniborg, Hven Island

The Two-Metre Brass Arc That Made Tycho's Pre-Telescopic Astronomy Possible

The mural quadrant at Tycho Brahe's Uraniborg observatory was a brass arc mounted on a north-south wall and used for measuring the meridian altitudes of stars and planets. It was the largest and most accurate astronomical instrument of the pre-telescopic period and produced most of the data that Kepler would later use to derive the laws of planetary motion.

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The Footnote June 23, 2026 · Herrevad Abbey, Skåne (then Denmark, now Sweden)

The New Star Tycho Brahe Saw From Denmark in 1572

On the evening of 11 November 1572 a bright new star appeared in the constellation Cassiopeia. It was visible for sixteen months. Tycho Brahe — twenty-five at the time — measured it carefully enough to prove it sat above the Moon. The Aristotelian heavens that were supposed to be unchanging had quietly changed.

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