Sophia Brahe Sophia Brahe Sophia or Sophie Brahe or after marriage Sophie Thott Lange (22 September 1556 or 24 August 1559 – 1643), was a Danish horticulturalist with knowledge of astronomy, chemistry, and medicine. She assisted her brother Tycho Brahe with his astronomical observations. She was born in Knudstrup, as the youngest of ten children, to Otte Brahe "rigsråd," or advisor to the King of Denmark; and Beate Bille Brahe, leader of the royal household for Queen Sophie. Sophia's oldest brother was astronomer Tycho Brahe. Though he was both more than a decade her senior and raised in a separate household, the
Tycho G the mean velocity of other stars in its stellar neighbourhood. It matches the properties of some models for the pre-supernova star system, although other studies exclude it. Tycho G Tycho G has been proposed as the surviving binary companion star of the SN 1572 supernova event. The star is located about 12,000 light-years away in the constellation Cassiopeia. It is a subgiant, similar to our Sun in temperature, but more evolved and luminous. The supernova SN 1572 is often called "Tycho's supernova", named after Tycho Brahe who observed the "new star" in 1572. The postfix "G" originates from the candidate