Seneca is a lunar crater that is located toward the east-northeastern limb, less than one crater diameter to the north of Plutarch crater. To the northwest is the Hahn crater, and due north lies the large Gauss walled plain.
SENECA is a program package for Computer Assisted Structure Elucidation of organic molecules. While it currently uses mainly 1D and 2D NMR spectroscopy for the CASE process it is open to all types of spectroscopic data.