A discussion of the photographic magnitudes of 31,735 stars between +20 and +30 and between +50 and +60
By: by Sarah Jeannette Hill
Publisher: Rutherford observatory, Columbia university
Published: 1942
Place of publication: New York, N. Y
Language: eng
Number of pages: 64
Subjects: Stars; Magnitudes; Photographic measurements
Notes: Cover title.

"Reprinted from the Astronomical journal, volume 50...October, 1942."

Vita: p. [3] of cover.

Thesis (PH. D.)--Columbia university, 1942.

"References": p. 64.