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Edwin Powell Hubble

(1889–1953) US astronomer, who discovered Hubble's law and established the reality of the expanding universe on experimental evidence. The son of a lawyer, Hubble ...

Hubble, Edwin Powell

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A Dictionary of Physics (8 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Physics
Length:
62 words

...Hubble, Edwin Powell ( 1889–1953 ) US astronomer , who worked at both the Yerkes Observatory and the Mount Wilson Observatory. Most of his studies involved nebulae and galaxies, which he classified in 1926 . In 1929 he established the Hubble constant , which enabled him to estimate the size and age of the universe. The Hubble Space Telescope is named after...

Hubble, Edwin Powell

Hubble, Edwin Powell (1889–1953)   Quick reference

World Encyclopedia

Reference type:
Subject Reference
Current Version:
2004
Subject:
Encyclopedias
Length:
86 words

..., Edwin Powell ( 1889–1953 ) US astronomer . In 1925 , he published his classification of galaxies and his discovery that spiral nebulae were resolvable as independent star systems. Using the telescope at Mount Wilson Observatory, he measured the distance to the Andromeda Galaxy . He attributed the red shift of the spectral lines of galaxies to their recession, and hence to the expanding universe . In 1929 he proposed a linear relation between the distance of a galaxy from Earth and their velocity of recession ( Hubble's law...

Hubble, Edwin Powell

Hubble, Edwin Powell (1889–1953)   Quick reference

Who's Who in the Twentieth Century

Reference type:
Subject Reference
Current Version:
2003
Subject:
History
Length:
217 words

..., Edwin Powell ( 1889–1953 ) US astronomer, who discovered Hubble's law and established the reality of the expanding universe on experimental evidence. The son of a lawyer, Hubble studied law at the University of Chicago and Oxford University. An excellent athlete, he fought against the French boxer Georges Carpentier and was offered a match with the world champion, Jack Johnson . Hubble began to practise law in 1914 but the attraction of astronomy became too strong and he returned to the University of Chicago, where he gained his PhD in 1917 ....

Hubble, Edwin Powell

Hubble, Edwin Powell (1889–1953)   Reference library

Robert W. Smith

The Oxford Encyclopedia of the History of American Science, Medicine, and Technology

Reference type:
Subject Reference
Current Version:
2015

..., Edwin Powell ( 1889–1953 ) , generally regarded as the leading observational cosmologist of the twentieth century. Hubble was born in Marshfield, Missouri, although he was raised largely in Illinois. His father worked in the insurance business and his mother was a homemaker. As an undergraduate at the University of Chicago, Hubble won a Rhodes Scholarship to Oxford and studied jurisprudence. He returned to science in 1914 when he became a graduate student in astronomy at the University of Chicago’s Yerkes Observatory. He completed his dissertation in...

Hubble, Edwin Powell

Hubble, Edwin Powell (1889–1953)   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018

..., Edwin Powell ( 1889–1953 ) American astronomer . He first studied nebulae, concluding in 1917 that the spiral-shaped ones (which we now know as galaxies) were different in nature from diffuse nebulae, which he found to be gas clouds illuminated by stars. From 1923 , using the 100-inch (2.5-m) telescope at Mount Wilson Observatory, he resolved the outer regions of the spiral nebulae M31 and M33 into stars, identifying over 30 Cepheid variables in them. This proved that such ‘nebulae’ were truly independent star systems like our own—other galaxies....

Hubble, Edwin Powell

Hubble, Edwin Powell   Quick reference

A Dictionary of Scientists

Reference type:
Subject Reference
Current Version:
2003
Subject:
Science and technology
Length:
817 words

..., Edwin Powell (1889–1953) American astronomer and cosmologist Hubble , who was born in Marshfield, Missouri, was the son of a lawyer. He was educated at the University of Chicago where he was influenced by the astronomer George Hale and, as a good athlete, was once offered the role of ‘Great White Hope’ in a match against the world heavyweight champion, Jack Johnson . Instead he went to England, accepting a Rhodes scholarship to Oxford University where, between 1910 and 1913 , he studied jurisprudence, represented Oxford in athletics, and fought...

Edwin Powell Hubble

Edwin Powell Hubble (1889–1953)   Reference library

Francis Crick

Oxford Dictionary of Scientific Quotations

Reference type:
Quotation
Current Version:
2006
Subject:
Quotations
Length:
357 words

...Edwin Powell Hubble 1889 – 1953 American astronomer Science is the one human activity that is truly progressive. The body of positive knowledge is transmitted from generation to generation. The Realm of the Nebulae (1936), 1 body of positive knowledge positive knowledge is transmitted The history of astronomy is a history of receding horizons. The Realm of the Nebulae (1936), 21 history of receding horizons history of receding horizons With increasing distance, our knowledge fades, and fades rapidly. Eventually, we reach the dim boundary—the...

Hubble, Edwin Powell

Hubble, Edwin Powell (1889–1953)   Reference library

The New Oxford Dictionary for Scientific Writers and Editors (2 ed.)

Reference type:
Subject Reference
Current Version:
2009

..., Edwin Powell ( 1889–1953 ) US astronomer and cosmologist . Hubble classification * Hubble constant Hubble diagram Hubble effect Hubble's law Hubble Space Telescope Abbrev.: ...

Hubble, Edwin Powell

Hubble, Edwin Powell   Quick reference

New Oxford American Dictionary (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
60 words
Hubble, Edwin Powell

Hubble, Edwin Powell   Quick reference

Oxford Dictionary of English (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
47 words
Hubble, Edwin Powell

Hubble, Edwin Powell   Reference library

The New Zealand Oxford Dictionary

Reference type:
English Dictionary
Current Version:
2005
Subject:
English Dictionaries and Thesauri
Length:
96 words
Edwin Powell Hubble

Edwin Powell Hubble  

(1889–1953)US astronomer, who discovered Hubble's law and established the reality of the expanding universe on experimental evidence.The son of a lawyer, Hubble studied law at the University of ...
Hubble time

Hubble time  

The time required for the Universe to expand to its present size, assuming that the Hubble constant has remained unchanged since the Big Bang. It is defined as the reciprocal of the Hubble constant, ...
Hubble length

Hubble length  

The Hubble length (also known as the Hubble distance) is the characteristic length scale of the Universe, and is obtained by multiplying the Hubble time by the speed of light. ...
Hubble–Sandage variable

Hubble–Sandage variable  

Any of a number of highly luminous stars identified in M31 and M33 by E. P. Hubble and A. R. Sandage in 1953. The name Hubble–Sandage variable has been used to refer to this type of star, but the ...
velocity–distance relation

velocity–distance relation  

The relationship between the recession velocity of an extragalactic object and its distance from the observer. In 1929 E. P. Hubble showed that for nearby galaxies this relationship is a straight ...
Hubble flow

Hubble flow  

The general outward motion of galaxies resulting from the uniform expansion of the Universe. All motions lie in a radial direction from the observer, and the velocities are proportional to the ...
Hubble's Variable Nebula

Hubble's Variable Nebula  

A reflection nebula in Monoceros, also known as NGC 2261, which is illuminated by the irregular variable R Monocerotis. The nebula's variability was detected by E. P. Hubble in 1916 and probably ...
Hubble law

Hubble law  

The law that governs the expansion of the Universe. According to the law, the apparent recession velocity of galaxies is proportional to their distance from the observer. In mathematical terms, v = ...
Hubble diagram

Hubble diagram  

A graph that plots the recession velocity of a galaxy, measured by its redshift, against its distance from us. The first such plot was made in 1929 by E. P. Hubble. He found a linear relation between ...

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