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Edwin Powell Hubble (November 20, 1889 – September 28, 1953) [1] was an American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology .
This correlation was first observed by Edwin Hubble and has come to be known as Hubble's law. Vesto Slipher was the first to discover galactic redshifts, in about 1912, while Hubble correlated Slipher's measurements with distances he measured by other means to formulate his Law. [63] Hubble's law follows in part from the Copernican principle. [63]
Edwin Hubble did most of his professional astronomical observing work at Mount Wilson Observatory, [27] home to the world's most powerful telescope at the time. His observations of Cepheid variable stars in "spiral nebulae" enabled him to calculate the distances to these objects. Surprisingly, these objects were discovered to be at distances ...
Around 1930, Edwin Hubble discovered that light from remote galaxies was redshifted; the more remote, the more shifted.This implies that the galaxies are receding from the Earth, with more distant galaxies receding more rapidly, such that galaxies also recede from each other.
The world-famous telescope is named after Edwin Hubble, an American astronomer who studied galaxies and made major contributions to the field of astronomy in the first half of the 20th century.
1928 – Howard P. Robertson briefly mentions that Vesto Slipher's redshift measurements combined with brightness measurements of the same galaxies indicate a redshift-distance relation. Three steps to the Hubble constant [93] 1929 – Edwin Hubble demonstrates the linear redshift-distance relationship and thus shows the expansion of the universe.
In 1929, Edwin Hubble provided an observational basis for Lemaître's theory. Hubble showed that the spiral nebulae were galaxies by determining their distances using measurements of the brightness of Cepheid variable stars. He discovered a relationship between the redshift of a galaxy and its distance.
In the 1920s, astronomers Georges Lemaître and Edwin Hubble discovered that the universe has been expanding since its birth 13.8 billion years ago. But research that began in the 1990s has shown ...