| Asteroids discovered: 16 | |
|---|---|
| 497 Iva | November 4, 1902 |
| 503 Evelyn | January 19, 1903 |
| 506 Marion | February 17, 1903 |
| 507 Laodica | February 19, 1903 |
| 508 Princetonia | April 20, 1903 |
| 510 Mabella | May 20, 1903 |
| 511 Davida | May 30, 1903 |
| 516 Amherstia | September 20, 1903 |
| 517 Edith | September 22, 1903 |
| 518 Halawe | October 20, 1903 |
| 519 Sylvania | October 20, 1903 |
| 521 Brixia | January 10, 1904 |
| 523 Ada | January 27, 1904 |
| 533 Sara | April 19, 1904 |
| 534 Nassovia | April 19, 1904 |
| 535 Montague | May 7, 1904 |
Raymond Smith Dugan (May 30, 1878–August 31, 1940) was an American astronomer and a graduate of Amherst College in Massachusetts (1899).
Dugan obtained his Masters Degree from Amherst College in 1902, and then received his Ph.D. dissertation in 1905 at the Landessternwarte Heidelberg-Königstuhl (Königstuhl Observatory, near Heidelberg) at the University of Heidelberg.[1]
At the time, the observatory at Heidelberg was a center of asteroid discovery under Max Wolf. During Dugan's time there, he discovered 16 asteroids, including notably 511 Davida.
He was employed by Princeton University 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 and John Quincy Stewart: 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 and the asteroid 2772 Dugan are named in his honour.