Background
Watson, James Craig was born on January 28, 1838 in Fingal, Ontario, Canada. Son of William and Rebecca (Bacon) Watson.
Astronomer university professor
Watson, James Craig was born on January 28, 1838 in Fingal, Ontario, Canada. Son of William and Rebecca (Bacon) Watson.
At age 15 he was matriculated at the University of Michigan, where he studied the classical languages. He graduated with a Bachelor in 1857 and received a master"s degree on examination after two years" study in astronomy under professor Franz Brünnow.
His family relocated to Ann Arbor, Michigan in 1850. He became Professor of Physics and instructor in Mathematics, and in 1863, succeeded him as professor of Astronomy and director of the Detroit Observatory. He wrote the textbook Theoretical Astronomy in 1868.
He discovered 22 asteroids, beginning with 79 Eurynome in 1863.
One of his asteroid discoveries, 139 Juewa was made in Beijing when Watson was there to observe the 1874 transit of Venus. The name Juewa was chosen by Chinese officials (瑞華, or in modern pinyin, ruìhuá).
Another was 121 Hermione in 1872, from Ann Arbor, Michigan, and this asteroid was found to have a small asteroid moon in 2002. The first was an expedition to observe the eclipse of the sun at Mount Pleasant, Iowa, in 1869.
The second of a similar expedition to Sicily, in 1870.
The third to Beijing, China, to observe the transit of Venus in 1874. The fourth to Wyoming, to observe the total eclipse of the sun in 1878. He was a strong believer in the existence of the planet Vulcan, a hypothetical planet closer to the Sun than Mercury, which is now known not to exist (however the existence of small Vulcanoid planetoids remains a possibility).
He believed he had seen such two such planets during his observation of the 1878 solar eclipse.
In 1879 he resigned his professorship at Ann Arbor to accept a call to the University of Wisconsin, where he hoped to find superior apparatus and instruments for the difficult observations which he had planned. He died of peritonitis at the age of only 42 and was buried at Forest Hill, Ann Arbor.
He had amassed a considerable amount of money through non-astronomical business activities. He received the honorary degree of Doctor of Philosophy from the University of Leipzig in 1870, and from Yale College in 1871, and the degree of Doctor of Laws from Columbia in 1877.
The asteroid 729 Watsonia is named in his honour, as is the lunar crater Watson.
National Academy of Sciences]
He was a member of the most important expeditions for astronomical observation sent out by the United States Government during his time. He was a member of the National Academy of Sciences and the American Philosophical Society.
Married Annette Waite, May 1860, no children.