Henrietta Swan Leavitt
She discovered the period-luminosity relationship for Cepheid variable stars, a crucial tool for measuring cosmic distances.
Most quoted
"A straight line can readily be drawn among each of the two series of points corresponding to maxima and minima, thus showing that there is a simple relation between the brightness of the variables and their periods."
— from Harvard College Observatory Circular 173, 1912
"Since the variables are probably at nearly the same distance from the Earth, their periods are apparently associated with their actual emission of light, as determined by their mass, density, and surface brightness."
— from Harvard College Observatory Circular No. 173, 1912
"The universe is not merely a collection of stars and nebulae; it is a grand narrative, a cosmic poem written in thelight of distant suns, and we, with our telescopes, are learning to read its verses."
— from Attributed
All quotes by Henrietta Swan Leavitt (411)
Life's brevity makes the pursuit of knowledge all the more urgent.
Humor in the observatory: even stars have their off nights!
The universe is not chaotic; it follows elegant laws we must discern.
My work at Harvard has been a labor of quiet dedication.
Cepheids are the mileposts of the cosmos.
In the face of illness, the stars remind us of enduring beauty.
Cataloging variables is tedious, but each one tells a story.
The night sky is a canvas painted by nature's hand.
Doubt from others only strengthens resolve.
Astronomy teaches humility before the infinite.
A variable star's light is a beacon across eons.
Laughter lightens the long hours under the dome.
The Magellanic Clouds hold treasures for the diligent eye.
Life's meaning lies in contributing to human understanding.
Precision in measurement unlocks the universe's scale.
Even in solitude, the stars are companions.
Why chase comets when variables stay put and reveal more?
Harvard's plates are windows to the stellar realm.
The pursuit of truth in science is a noble art.
Illness dims the body, but not the mind's gaze to the heavens.
Contemporaries of Henrietta Swan Leavitt
Other Astronomys born within 50 years of Henrietta Swan Leavitt (1868–1921).