Vothoffman Planetary Classification Scale

The Vothoffman Planetary Classification Scale was created in the year 2056 upon the discovery of the Mass-reduction drive. It was designed by Dr. Richard Vothoffman as a means to rank planets based on hospitality. The scale is as follows:

Class A: Terran-like hospitality.

Class B: Close to Terran-like hospitality

Class C: Inhospitable except for within closed environments (i.e. Spacesuit, Spaceship)

Class D: Inhospitable ''' Only in emergency circumstances should you attempt to land on a class D planet. '''