Mars, ground-based telescope

distance from Sun = 1.52 AU

rotation period = 1.029 days

orbital period = 686.0 days

orbital eccentricity = .093

orbital inclination = 1.8o

axis inclination = 25.19o

mass/me = .1074

radius/re = .533

albedo = .15

gravity/ge = .38

known satellites = 2

atmosphere: CO2