The Natal Registry · Science & Tech
Niels Kaj Jerneborn under Mercury retrograde
Danish immunologist — born December 23, 1911, while Mercury traced its backward loop through Capricorn.
BornDecember 23, 1911(1911–1994)♑︎☿ Rx in Capricorn · 5°37′Rx windowDec 16, 1911 – Jan 5, 1912
✶Astrological tradition — for entertainment, not astronomy
Tradition reads a natal Mercury retrograde as the inward mind — drafted, revised, doubled back — and gives it a earth-sign keynote in Capricorn: Career wires cross; confirm every meeting twice.
Shares a retrograde sign with
Born inside the very same window
Coincidence, not causation: the birthday and the window are real and ephemeris-based; the reading is tradition, offered in good fun.