Closest approach to Earth
34,600,000 miles

Mean distance from the Sun
141,600,000 miles

Period of rotation around the Sun
1.88089 years

Citerial rotation period
24 hours, 37 minutes, 22.66 seconds

Mean surface atmospheric temperature
-23 degrees

Visual albedo
0.159

Pole Star
BD 52 Degrees 2880

Visual magnitude at mean position
-2.01

Mass
0.10174

Density
3.95

Diameter
0.532

Inclination of equator
24.936 degrees

Gravitational escape velocity
3121 miles

inclination...