William Wilson Morgan

William Wilson Morgan's AcademicInfluence.com Rankings

Physics

#436

World Rank

#761

Historical Rank

#208

USA Rank

Astronomy

#27

World Rank

#76

Historical Rank

#15

USA Rank

physics Degrees

Download Badge

Physics

William Wilson Morgan's Degrees

PhD Astronomy University of California, Berkeley

Why Is William Wilson Morgan Influential?

(Suggest an Edit or Addition)

According to Wikipedia, William Wilson Morgan was an American astronomer and astrophysicist. The principal theme in Morgan's work was stellar and galaxy classification. He is also known for helping prove the existence of spiral arms in our galaxy. In addition to his scientific achievements he served as professor and astronomy director for the University of Chicago's Yerkes Observatory in Wisconsin and was the managing editor for George Hale's Astrophysical Journal.

(See a Problem?)

William Wilson Morgan's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas (1953) (689)
A Discussion of Galaxies Indentified with Radio Sources. (1964) (226)
Stellar Spectra. (Scientific Books: An Atlas of Stellar Spectra with an Outline of Spectral Classification) (1943) (187)
On the Classification of the Forms of Clusters of Galaxies (1970) (171)
Studies in Galactic STRUCTURE.II.LUMINOSITY Classification for 1270 Blue Giant Stars. (1955) (164)
Studies in Galactic Structure. I. a Preliminary Determination of the Space Distribution of the Blue Giants. (1953) (138)
An Atlas of Stellar Spectra (1943) (131)
A SPECTRAL CLASSIFICATION OF GALAXIES (1957) (90)
Revised MK spectral atlas for stars earlier than the sun (1981) (82)
Some features of galactic structure in the neighborhood of the Sun. (1952) (79)
PRELIMINARY CLASSIFICATION OF THE FORMS OF GALAXIES ACCORDING TO THEIR STELLAR POPULATION. II (1958) (69)
CD galaxies in poor clusters (1975) (63)
The Space Motions of AE Aurigae and μ Columbae with Respect to the Orion Nebula. (1954) (57)
The Classification of the Red Carbon Stars. (1941) (55)
On the Intensities of Stellar Absorption Lines. (1932) (53)
On the Color-Magnitude Diagram of the Pleiades. (1951) (53)
The Supergiant Galaxies. (1965) (46)
THE INTEGRATED SPECTRAL TYPES OF GLOBULAR CLUSTERS (1956) (44)
On the Classification of the a Stars. I. The Spectral Types of the Brighter Members of the Hyades Cluster. (1940) (39)
The Differences Among Globular Clusters: The integrated spectra of globular clusters (1959) (35)
An Atlas of low-dispersion grating stellar spectra (1968) (32)
On the Classification of the Forms and the Stellar Content of Galaxies (1969) (30)
The Classification of the Metallic-Line Stars. (1948) (30)
Some Evidence for a Regional Variation in the Law of Interstellar Reddening. (1955) (30)
Some Characteristics of Color Systems. (1953) (28)
A Description of Certain Galactic Nebulosities. II. (1955) (27)
A Heavily Obscured O-Association in Cygnus. (1954) (26)
Some Evidence for the Existence of a Peculiar Branch of the Spectral Sequence in the Interval B8-Fo (1933) (25)
Rapid Variables in the Orion Nebula. (1953) (25)
Some Characteristics of Galaxies. (1962) (23)
Revised Standards for Supergiants on the System of the Yerkes Spectral Atlas. (1950) (23)
Studies in Spectral Classification. II. The HR Diagram of NGC 6530. (1965) (23)
Reddened Early m- and S-Type Stars Near the Galactic Equator. (1954) (22)
Photometric and Spectroscopic Observations of the Double Cluster in Perseus. (1955) (21)
Expanding Motions in the Lacerta Aggregate. (1953) (21)
Notes: A Probable Clustering of Blue Giants in Cygnus. (1953) (20)
Studies in Spectral Classification. I. The HR Diagram of the Hyades. (1965) (18)
Studies in Spectral Classification. III. The H-R Diagrams of NGC 2244 and NGC 2264. (1965) (16)
Photometric and Spectroscopic Observations of Stars in IC 348. (1954) (16)
Abundance effects in classification (1976) (16)
A PRELIMINARY CLASSIFICATION OF THE FORMS OF GALAXIES ACCORDING TO THEIR STELLAR POPULATION (1958) (16)
A VERY RED STAR OF EARLY TYPE IN CYG. (1954) (15)
Spectral Classification with Exceedingly Low Dispersion. (1954) (13)
The spectral classification of the F stars of intermediate luminosity. (1972) (12)
The H-R diagram of NGC 2516. (1969) (12)
On the Spectral Classification of the Stars of Types a to K (1937) (12)
THE CLASSIFICATION OF CLUSTERS OF GALAXIES. (1961) (12)
On the distribution of interstellar gas in the galactic halo (1982) (10)
The Moving Cluster in Perseus. (1950) (10)
MK morphology of a group of Am stars (1976) (10)
Diurnal fluctuation in DNA content and DNA synthesis in the dorsal epidermis of Rana pipiens. (1971) (10)
H--R DIAGRAM OF THE OPEN CLUSTER IC 2602. (1972) (10)
UBV photometry and spectral types in NGC 6611. (1969) (9)
The H-R diagram of the Alpha Persei cluster. (1971) (9)
Studies in Peculiar Stellar Spectra. I. The Manganese Lines in α Andromedae (1931) (8)
The Spiral Structure of the Galaxy (1955) (8)
Spiral Structure in External Galaxies (1970) (7)
Morphology of optical forms of N galaxies (1983) (7)
On the Determination of Color Indices of Stars from a Classification of Their Spectra (1938) (7)
A Finding List of F Stars of High Luminosity. (1952) (7)
The galactic cluster M29 (NGC 6913) (1956) (7)
A Morphological Life (1988) (7)
On the Spectral Types and Luminosities of the M Dwarfs (1938) (7)
Studies in Peculiar Stellar Spectra. II. The Spectrum of B. D. 18°3789 (1931) (6)
A COMPARISON OF THE OPTICAL FORMS OF CERTAIN SEYFERT GALAXIES WITH THE N- TYPE RADIO GALAXIES. (1968) (6)
A Study of the Spectrum Variable 73 Draconis (1933) (6)
Form, Tradition, and Consolation in Hardy's “Poems of 1912–13” (1974) (6)
BD +75°325: A SUBLUMINOUS O-TYPE STAR (1957) (6)
Blue Giants in the Neighborhood of NGC 6231. (1953) (6)
On the metallicity of the main-sequence stars in M67 (1973) (6)
A descriptive study of the spectra of the A-type stars (1935) (5)
THE SPECTRA OF GALAXIES (1959) (5)
On the occurrence of europium in A-type stars (1932) (5)
A new shell phase in Pleione. (1973) (5)
The helium stars having the most rapid axial rotation. (1944) (5)
OBSERVATIONS OF THE OWENS VALLEY RADIO OBSERVATORY, CALIFORNIA INSTITUTE OF TECHNOLOGY PASADENA, CALIFORNIA. A DISCUSSION OF GALAXIES IDENTIFIED WITH RADIO SOURCES, (1964) (4)
Some aspects of the spectroscopic behavior of the stars of highest luminosity in the region of the Hertzsprung gap. (1981) (4)
A Useful Luminosity Discriminant in the Late K and Early M Giants. (1951) (4)
A Useful Fine-Grain Developer for Spectrographic Photography (1936) (4)
Note: Relative Stellar Energy Distribution in the Infra-Red (1934) (3)
Classification of Stellar Spectra (1951) (3)
ON THE SPECTRUM OF BIDELMAN'S HELIUM VARIABLE STAR HD 125823. (1968) (3)
Minor Contributions and Notes: Four Early Type Stars Having Variable Absorption Lines (1932) (3)
Some characteristics of the orion association (1966) (3)
Spectra of high-velocity giants. (1948) (3)
Reobservation of the orbits of ten spectroscopic binaries with a discussion of apsidal motions. (1939) (3)
Feminism and Literary Study: A Reply to Annette Kolodny (1976) (3)
A Finding List of O and B Stars of High Luminosity. (1951) (3)
A Unitary Classification for N Galaxies (1971) (3)
Some Effects of Changes in Stellar Temperatures and Absolute Magnitudes (1933) (3)
The Distribution of Light in the Central Regions of Some Giant Elliptical Galaxies (1971) (2)
A Peculiar Spectroscopic Phenomenon in the Algol System (1935) (2)
On the Interstellar Reddening in the Region of the North Polar Sequence and the Normal Color Indices of A-Type Stars. (1946) (2)
ON THE SPECTRAL TYPE OF THE SUN (1939) (2)
An Interesting Emission-Line Star Near the Orion Nebula. (1946) (2)
Four a- and F-Type Stars whose Spectra Contain Variable Absorption Lines (1932) (2)
Complex Lines in the Spectrum of θ Aurigae (1944) (2)
Proceedings of the Conference on Seyfert Galaxies and Related Objects: 11. Spectral Variations in the Nucleus of NGC 4151 (1968) (2)
Spectrum of Nova Herculis (1936) (2)
The MK System and the MK Process (2003) (2)
Distribution of Early Type Stars of High Luminosity Near the Galactic Equator (1951) (2)
Daily fluctuations of DNA synthesis in the corneas of Rana pipiens. (1971) (1)
On the Color of P Cygni. (1939) (1)
Note on the motion and possible origin of the O-type star HD 34078 = AE Aurigae and the emission nebula IC 405. (1953) (1)
Photometric distances : systems of spectroscopic luminosity criteria. (1958) (1)
SPECTRAL VARIATIONS IN THE GALAXY NGC 4151. (1968) (1)
A II in the Spectrum of ν Sagittarii (1934) (1)
A Possible Interpretation of the Absorption Spectra of Nova Herculis (1936) (1)
Application of the principle of natural groups to the classification of stellar spectra. (1951) (1)
IONIZED ARGON IN THE SPECTRUM OF UPSILON SAGITTARII. (1934) (1)
A Study of the Composite Spectrum of the A-Type Star 14 Comae (1932) (1)
Orbit of the spectroscopic binary 95 O Leonis. (1927) (1)
Images of Men and Maleness: A Thematic Approach to Teaching Women Writers. (1979) (1)
The Spectrum of T Coronae Borealis at its 1946 Outburst. (1947) (1)
, a Luminous a Star in the Scorpio-Centaurus Association. (1955) (1)
On a Line at λ 4470 IN the Spectrum of 21 Aquilae (1933) (1)
SOME VISTAS OF ASTRONOMICAL DISCOVERY (1960) (1)
INVITED PAPER - Spectral Classification Since Henry Norris Russell's Atlanta Lecture of 1913. (1977) (1)
Addendum: MK Morphology of a Group of AM Stars (1976) (1)
Proceedings of the Conference on Seyfert Galaxies and Related Objects: 2. A Comparison of the Optical Forms of Certain Seyfert Galaxies with the N-Type Radio Galaxies (1968) (1)
Stellar Population of the Nuclear Region of the Andromeda Nebula. (1964) (1)
New Hα Emission Stars. (1946) (0)
45. Spectral Classifications and Multi-Band Colour Indices (1970) (0)
On the parallaxes of some of the brighter helium stars (1946) (0)
Short communication on behalf of A. Slettebak and J. STOCK (1958) (0)
The friendly stars : how to located and identify them (1964) (0)
Orientation effects in two 1P2I photometers. (1952) (0)
Verse and Prose in Much Ado About Nothing: An Analytic Note (1971) (0)
Some Features of Stellar Populations as Determined from Integrated Spectra (1958) (0)
Poetic Craft and Poetic Art (1975) (0)
Some characteristics of galaxies which bear on their use as a fundamental astrometric frame of reference (1960) (0)
Remarks on Some Aspects of Spectral Classification (1976) (0)
Spectroscopic Discriminant for O-Type Star Clusters. (1963) (0)
Note on Interstellar Reddening in the Region of γ Cygni. (1939) (0)
A guide to the year's work in Victorian poetry: 1995 and 1996 (1996) (0)
Molecular Bands as Indicators of Stellar Temperatures and Luminosities. (1939) (0)
Note on a Possible Effect of the Recent Increase in Brightness of γ Cassiopeiae (1937) (0)
8. The Photoelectric Photometry of the Stars (1979) (0)
La variable de helio HD 125823 (1969) (0)
B Stars Showing Bright Lines of fe II. (1946) (0)
THE PHYSICAL CHARACTERISTICS AND DISTRIBUTION IN SPACE OF GALAXIES (1962) (0)
Some Uses of Spectral Classification in HR Diagrams (1978) (0)
Variations in the Spectrum of 29 Canis Majoris (1935) (0)
The observation of blue giant stars at great distances from the sun (1958) (0)
On the Variable Lines of Helium and Magnesium in the Spectrum of 13 μ Sagittarii (1932) (0)
Note on the Spectrum of 37 θ Aurigae (1932) (0)
Classification of Compact Objects: QSS, QSOs, N-Type and Compact Galaxies, Seyfert and Galactic Nuclei (1972) (0)
Images of Men and Madeness: A Thematic Approach to Teaching Women Writers in Women and Writing. (1979) (0)
Problems in Astrometry: Some astrometric problems of galactic structure (1954) (0)
Note: a New Fourth-Magnitude Eclipsing Binary. (1938) (0)
Surface distribution of late M stars in the Milky Way. (1952) (0)
Studies of the Stellar System. (1947) (0)
Classifcation of Compact Objects: QSS, QSOs, N-Type and Compact Galaxies, Seyfert and Galactic Nuclei (survey Lecture) (1972) (0)
Abundance effects in classification : symposium no. 72 held in Lausanne-Dorigny, Switzerland, July 8-11, 1975 (1976) (0)
The Nebulosity Near S Monocerotis. (1939) (0)
The reddest B stars. (1952) (0)
On the Relative Intensities of Certain Lines of TI II in the Spectra of Three F-Type Stars (1933) (0)
The Spectrum of the a2 Dwarf ε Serpentis (1932) (0)
Blue Giants in the Direction of the Galactic Center. (1953) (0)
Ionized Argon in the Spectrum of Upsilon Sagittarii (1934) (0)
An Optical Form Morphology of Seyfert Galaxies (1971) (0)
Note on a star having a peculiar spectrum (1933) (0)
Struve's Approach to Spectral Classification (1970) (0)
NOTE ON THE MK CLASSIFICATION SYSTEM. (1968) (0)
24. Stellar Parallaxes and Proper Motions (1970) (0)
Color Separation of Giant and Dwarf Stars. (1963) (0)
A survey for stars of high luminosity in the galaxy. (1949) (0)

This paper list is powered by the following services:

Other Resources About William Wilson Morgan

en.wikipedia.org

What Schools Are Affiliated With William Wilson Morgan?

William Wilson Morgan is affiliated with the following schools:

William Wilson Morgan's Academic­Influence.com Rankings