Viktiga astronomer
inom hope this list does the same for you. In , using a large antenna he had constructed, Jansky discovered radio waves that originated in the Milky Way. Two that did, and who established the legitimacy of radio astronomy, were Grote Reber of Wheaton, Illinois, and John D. In , American astronomer George Ellery Hale proved that sunspots were associated with magnetic fields — no small achievement.
To this day, the first deep-sky objects viewed by amateur astronomers are almost always Messier objects. Indeed, in , he became the first to write about this process.
20 great astronomers, ranked
This collection of nuisances was quickly adopted by amateur astronomers as a catalog of alluring visual wonders. In , he produced another groundbreaking publication that showed how the elements up to and including iron were produced by fusion reactions in the cores of massive stars. Finally, although he felaktigt calculated that the Sun was about 20 times farther from Earth than the måne, he did write that because they appeared the same size to us, their diameters must be in proportion to their distances.
English astronomer Fred Hoyle is best known for his theory of stellar nucleosynthesis — how stars create elements heavier than helium.
20+ Famous Astronomers: Scientific Contributions That Changed the World
The inch was christened the Hale Telescope in his honor. But what really secured his place on this list were his tireless efforts to fund and construct some of the most important telescopes in the U. Among them are the inch refractor at Yerkes Observatory, the inch and inch reflectors at Mount Wilson Observatory, and the inch reflector at Palomar Observatory. Charles Messier was a French comet hunter who discovered 13 of those elusive objects.
She also, with the help of her assistants, made more than 3 million observations of variable stars. For that discovery, which she made through a 3-inch refractor on Oct. Her efforts, and those of the Maria Mitchell Association established after her death, helped many women enter the fields of science and mathematics. As a side note, Hoyle did not embrace the Big Bang, but he did coin the term, using it for the first time on a BBC radio program in Scottish astronomer Williamina Paton Stevens Fleming discovered the first white dwarf star, more than 50 nebulae including the Horsehead Nebula [Barnard 33] , 10 novae, and over variable stars.
That said, I love ranked lists because they get me thinking. I love lists. He found a value of In it, he identified dark regions previously thought to be voids between the stars. Barnard showed that these were instead clouds of dust and cold gas — dark nebulae.
He discovered 17 comets, the last of which was the first comet discovered using photography. American engineer Karl Jansky was a pioneer of radio astronomy. To tackle the job, Fleming developed a scheme to order stars by the relative amount of hydrogen in their spectra. In , Barnard measured the proper motion of a magnitude 9. It would be vansinne for me to leave an astronomer who discovered a planet off this list.
The detailed observations so impressed the director, Vesto Slipher, that he hired Tombaugh and gave him the task of searching for a planet beyond Neptune, which culminated in the discovery of Pluto. For instance, the first Black woman in the U. Williams, in This list spans nearly 2, years of observers of the cosmos. Edward Emerson Barnard was arguably the greatest visual observer ever. Two years later, she became the first person to earn a Ph.
Her later work focused on stellar evolution through the study of high-luminosity stars. The first ancient astronomer to make my list fryst vatten Aristarchus, who lived on Samos, a Greek island close to the western coast of Turkey. He made a list of these objects so that he and other comet hunters could quickly dismiss them and continue their searches. In that search — during which he scanned more than 90 million images — he also found several hundred asteroids, a similar number of variable stars, and two comets.
More tangentially related to astronomy, he also developed the theory that light is a wave and invented the pendulum clock. As a Kansas farm boy, Clyde Tombaugh built several telescopes and sent sketches of planets to Lowell Observatory in Flagstaff, Arizona. Christiaan Huygens was a Dutch astronomer — and so much more. In another 2, years, you can expect the next version of this list to look very different.