Edward Walter Maunder
A Greenwich astronomer who uncovered a 70-year silence in the sun's activity, reshaping our understanding of the star's influence on Earth's climate.
1851–1928 (age 77)·British astronomer studying sunspots·Birthday: April 12
Biography
Edward Walter Maunder spent his career in the hushed, lamplit halls of the Royal Observatory at Greenwich, photographing sunspots and mapping solar activity. His work was often seen as routine, the daily charting of a familiar star. But Maunder had a historian's mind. Delving into centuries of observational records, he noticed a startling gap: from 1645 to 1715, reports of sunspots virtually vanished. He championed the idea that this wasn't just bad record-keeping, but evidence of a profound solar slumber. Initially dismissed, his 'Maunder Minimum' was later vindicated and linked to the coldest period of the Little Ice Age, when frost fairs were held on the frozen Thames. His detective work proved the sun was not a constant beacon, but a variable engine whose moods could chill the very planet. He also famously demonstrated, with a simple walking experiment, how the 'canals' of Mars reported by Percival Lowell were likely optical illusions of the human eye.
#1 When Edward Was Born
The biggest hits of 1851
Edward's Life & Times
The world at every milestone
1851Born
1856Started school
1864Became a teenager
President: Abraham Lincoln
1867Could drive
President: Andrew Johnson
1869Could vote
President: Ulysses S. Grant
1872Turned 21
President: Ulysses S. Grant
1881Turned 30
President: Chester A. Arthur
1891Turned 40
President: Benjamin Harrison
1901Turned 50
Queen Victoria dies, ending the Victorian era
President: Theodore Roosevelt
1911Turned 60
Triangle Shirtwaist Factory fire kills 146 in New York
President: William Howard Taft
1921Turned 70
First commercial radio broadcasts
President: Warren G. Harding"My Man" — Fanny Brice
1928Died at 77
Alexander Fleming discovers penicillin; Mickey Mouse debuts
President: Calvin Coolidge"Ol' Man River" — Paul WhitemanBest Picture: Wings
Key Achievements
- Identified and documented the period of drastically reduced sunspot activity from 1645 to 1715, later named the Maunder Minimum.
- Established a strong correlation between the sunspot cycle and magnetic activity on Earth.
- Served as the editor of the 'Journal of the British Astronomical Association' for over three decades.
- Co-authored, with his second wife Annie, the influential book 'The Heavens and Their Story.'
Did You Know?
His second wife, Annie Scott Dill Maunder, was a brilliant mathematician and astronomer in her own right who collaborated closely on his research.
The Maunder Minimum coincides with the reign of Louis XIV, the 'Sun King,' a period of a historically weak actual sun.
He was a devout Christian and wrote extensively on the relationship between astronomy and theology.
“The sun has a history written in its scars, and it tells of a quiet star.”
