Julena Steinheider Duncombe

Julena Steinheider (far right) and two other staff members dining with interned newspaper editor Bill Hosokawa and his family at Heart Mountain

Julena Steinheider Duncombe (1911–2003) was an American mathematician and astronomer. She was known for her work as a teacher at the Heart Mountain Relocation Center and as an astronomer at the United States Naval Observatory, where she made pioneering observations with the 6-inch transit circle, introduced the use of punched cards in cataloging stars and constructing tables of positions of celestial bodies, and led the production of eclipse predictions for almanacs.[1][2]

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