Pub Date: May 1, 2012
Dewey: B
LCCN: 2011002792
Lexile Code: 0000
Features: Bibliography, Illustrated, Index
Target Age Group: 12 to 17
Physical Info: 0.60" H x 9.10" L x 6.10" W ( 1.00 lbs) 128 pages
BISAC Categories:
Juvenile Nonfiction | Biography and Autobiography | Science and Technology
Description: In the 42 years that Edward Pickering directed the Harvard College Observatory, he and his team of women "computers" made strides in promoting the new field of astrophotography, discovered the first spectroscopic binary star system, and cataloged more than 225,000 stars.