Raymond Smith Dugan
Encyclopedia
Asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

s discovered: 16
497 Iva
497 Iva
497 Iva is a main-belt asteroid orbiting the Sun, not to be confused with 1627 Ivar....

 
November 4, 1902
503 Evelyn
503 Evelyn
503 Evelyn is a main belt asteroid discovered by Raymond Smith Dugan on 19 January 1903. The asteroid was named after Evelyn Smith Dugan, mother of the discoverer....

 
January 19, 1903
506 Marion
506 Marion
506 Marion is a minor planet orbiting the Sun. It was discovered by Raymond Smith Dugan in February 1903, and was later named for a cousin of his. It is designated as a C-type asteroid with a size of approximately .- References :...

 
February 17, 1903
507 Laodica
507 Laodica
507 Laodica is a minor planet orbiting the Sun....

 
February 19, 1903
508 Princetonia
508 Princetonia
508 Princetonia is an asteroid, a minor planet orbiting the Sun. It was discovered by Raymond Smith Dugan at Heidelberg, Germany in 1903 and named "Princetonia" for Princeton University in New Jersey in the United States....

 
April 20, 1903
510 Mabella
510 Mabella
510 Mabella is a minor planet orbiting the Sun....

 
May 20, 1903
511 Davida
511 Davida
511 Davida is a large main-belt C-type asteroid. It was discovered by R. S. Dugan in 1903. It is one of the ten most massive asteroids. It is approximately 270–310 km in diameter and comprises an estimated 1.5% of the total mass of the asteroid belt...

 
May 30, 1903
516 Amherstia
516 Amherstia
516 Amherstia was the 8th asteroid discovered by Raymond Smith Dugan, and was named after Amherst College, his alma mater. Amherstia is a large M-type asteroid, with an estimated diameter of 73 km. It follows an eccentric orbit between Jupiter and Mars, with an orbital period of 4.39 years....

 
September 20, 1903
517 Edith
517 Edith
- External links :...

 
September 22, 1903
518 Halawe
518 Halawe
518 Halawe is a minor planet orbiting the Sun. It is named after the middle-eastern confectionery Halva....

 
October 20, 1903
519 Sylvania
519 Sylvania
519 Sylvania is a minor planet orbiting the Sun....

 
October 20, 1903
521 Brixia
521 Brixia
521 Brixia is a minor planet orbiting the Sun....

 
January 10, 1904
523 Ada
523 Ada
523 Ada is a minor planet orbiting the Sun....

 
January 27, 1904
533 Sara
533 Sara
533 Sara is a minor planet orbiting the Sun....

 
April 19, 1904
534 Nassovia
534 Nassovia
534 Nassovia is a minor planet orbiting the Sun. It is a member of the Koronis family of asteroids....

 
April 19, 1904
535 Montague
535 Montague
535 Montague is a minor planet orbiting the Sun....

 
May 7, 1904

Raymond Smith Dugan (May 30, 1878–August 31, 1940) was an American astronomer
Astronomer
An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...

 and a graduate of Amherst College
Amherst College
Amherst College is a private liberal arts college located in Amherst, Massachusetts, United States. Amherst is an exclusively undergraduate four-year institution and enrolled 1,744 students in the fall of 2009...

 in Massachusetts
Massachusetts
The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

 (1899).

Dugan obtained his Masters Degree from Amherst College
Amherst College
Amherst College is a private liberal arts college located in Amherst, Massachusetts, United States. Amherst is an exclusively undergraduate four-year institution and enrolled 1,744 students in the fall of 2009...

 in 1902, and then received his Ph.D. dissertation in 1905 at the Landessternwarte Heidelberg-Königstuhl
Landessternwarte Heidelberg-Königstuhl
The Heidelberg-Königstuhl State Observatory is an historic astronomical observatory located near the summit of the Königstuhl hill in the city of Heidelberg in Germany...

(Königstuhl Observatory, near Heidelberg) at the University of Heidelberg.

At the time, the observatory at Heidelberg was a center of asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

 discovery under Max Wolf
Max Wolf
Maximilian Franz Joseph Cornelius Wolf was a German astronomer and a pioneer in the field of astrophotography...

. During Dugan's time there, he discovered 16 asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

s, including notably 511 Davida
511 Davida
511 Davida is a large main-belt C-type asteroid. It was discovered by R. S. Dugan in 1903. It is one of the ten most massive asteroids. It is approximately 270–310 km in diameter and comprises an estimated 1.5% of the total mass of the asteroid belt...

.

He was employed by Princeton University
Princeton University
Princeton University is a private research university located in Princeton, New Jersey, United States. The school is one of the eight universities of the Ivy League, and is one of the nine Colonial Colleges founded before the American Revolution....

 as an instructor (1905–1908), assistant professor (1908–1920), and professor (1920—). He married Annette Rumford in 1909.

Dugan co-wrote an influential two-volume textbook in 1927 with Henry Norris Russell
Henry Norris Russell
Henry Norris Russell was an American astronomer who, along with Ejnar Hertzsprung, developed the Hertzsprung–Russell diagram . In 1923, working with Frederick Saunders, he developed Russell–Saunders coupling which is also known as LS coupling.-Biography:Russell was born in 1877 in Oyster Bay, New...

 and John Quincy Stewart
John Quincy Stewart
John Quincy Stewart was an American astrophysicist.He obtained his Ph.D. in physics from Princeton University in 1919...

: Astronomy: A Revision of Young’s Manual of Astronomy (Ginn & Co., Boston, 1926-27, 1938, 1945). This became the standard astronomy textbook for about two decades. There were two volumes: the first was The Solar System and the second was Astrophysics and Stellar Astronomy.

The lunar crater Dugan
Dugan (crater)
Dugan is a lunar crater that is located on the northern part of the Moon's far side. It lies to the southwest of the large walled plain Schwarzschild, and due north of the crater Compton....

 and the asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

 2772 Dugan
2772 Dugan
2772 Dugan is a main-belt asteroid discovered on December 14, 1979 by Bowell, E. at Flagstaff .- External links :*...

are named in his honour.

External links

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