Sunday, November 25, 2012
Lewis Morris Rutherford
Rutherford used his 11 and 1/4 inch telescope to take pictures of the moon, the planets and stars. Then using a diffraction grating of his own manufacture he began taking spectra of planets and stars. In 1863 he published a paper which was the first attempt to classify stars according to their spectra, dividing stars into three categories. Today, most stars are classified using the system developed by Annie Jump Cannon that classifies stars by their color. In order of decreasing surface temperature, O are blue stars, B white/blue stars, A white stars, F yellow/white stars, G yellow stars, K orange stars, and M red stars.
Rutherford served as an trustee of Columbia University from from 1858 to 1884. He was an active participant in the International Meridian Conference which established the prime meridian as the line of longitude that runs through Greenwich, England. In 1867 he served as president of the American Photographical Society. He was an associate of the Royal Astronomical Society and a member of the National Academy of Sciences since its founding in 1863.
In his later years he was in delicate health and he died from the complications of a cold he contracted while traveling to his winter residence in Florida on May 30, 1892.
Anon; "A Sketch of Lewis Morris Rutherford", Popular Science (1893) Vol. 42
Gould, B.A.; "Memoir of Lewis Morris Rutherford: 1816-1892"; National Academy Press; 1895
Lewis Morris Rutherford Wikipedia Entry