EarthvsMercury
Earth has a higher Number of Moons (1 vs 0 moons), while Earth has a higher Axial Tilt (23 vs 0 °), while Mercury has a higher Length of Day (4,223 vs 24 hours).
Physical Properties
6
Mass
0
6,371
Mean Radius
2,440
5,514
Density
5,427
10
Surface Gravity
N/A
11
Escape Velocity
4
254
Black-Body Temperature
440
1
Number of Moons
0
No
Has Ring System
No
Orbital Characteristics
365
Orbital Period
88
24
Length of Day
4,223
30
Orbital Velocity
47
0
Orbital Eccentricity
0
23
Axial Tilt
0
147
Perihelion
46
152
Aphelion
70
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Data sourced from NASA NSSDC Planetary Fact Sheet (US Government public domain).