Percy Adams was born on December 20, 1876 (November 5, 1876), the American astronomer Walter Adams was born today. Walter Sidney Adams (December 20, 1876 ¨C May 11, 1866), an American astronomer. Adam was born in Syria in 1876 to an American missionary family, and moved to the United States in 1885. In 1898, Adam graduated from Dartmouth College and returned to Germany. After returning to the United States, he worked with the famous astronomer Hale. Between 1923 and 1946, he served as a long observatory at the Wilson Mountain Observatory. When Adams was primarily engaged in the study of star spectrum, astronomer Arnold Kohlütschter studied the Sun and other star spectrum, and discovered the relatively strong relationship between the line and the star, such as that he could be used to measure when the star was discovered in the