1. Celestial shadows : eclipses, transits, and occultations /: eclipses, transits, and occultations. ([2015]) Authors: Westfall, John Edward, 1938-; Sheehan, William, 1954- Record Type: Book Extent: 1 online resource (xxiv, 713 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗