Equations used for computing the position of the moon on the SSEC
International Business Machines Corporation (IBM)
10 x 8 in.
This is a black and white image of calculations used to compute the position of the moon on the IBM SSEC The caption on top of the image is "Equations used for computing the position of the moon on the IBM Selective Sequence Electronic Calculator". There are 47 lines of data indicating longitude, latitude, and parallax. The bottom of image contains summary notes. All text are in black color against a white background. Verso side of image written in pencil at the top edge is "#1334" and "R.678".
Publicity photograph; Identification photograph
International Business Machines Corporation (IBM); Calculators--History; Calculators; IBM Selective Sequence Electronic Calculator (SSEC)