How big is the moon Titan compared to the Earth? How is the gravity different between these two planetary bodies?

Question

How big is the moon Titan compared to the Earth?  How is the gravity different between these two planetary bodies?

Ivy Allen · Accepted Answer

Around half of Earth's radius is the radius of Titan. The surface gravity of Titan is #"1.353 m"//"s"^2#, meaning that the gravity on Titan is about 7.3 times weaker than on Earth.

Size:

The radius of Earth is:
#"6,371 km"# or #"6,371" * 10^3 "m" = "6,371,000 m"#

Whereas the radius of Titan is:
#"2,575.5 km"# or #"2,575.5" * 10^3 "m" = "2,575,500 m"#

Then

Difference in Size #= "Titan's Radius"/"Earth's Radius"#

#"2,575,500"/"6,371,000" = 0.404 ~= 0.5#

Meaning about half the size of Earth's radius.

Here is a comparison of the size of Titan (in the middle) compared to that of Earth and the Moon.

and the surface gravity on Titan is #1.353 "m"//"s"^2#

So the difference between these two gravitational bodies is around:

Difference in Gravity #="Earth's Gravity"/"Titan's Gravity" #

#9.807/1.353 = 7.248 ~= 7.3 #

Meaning that the gravity on Titan is about 7.3 times weaker than on Earth.

Levi Anderson · Answer

undefined Titan, the largest moon of Saturn, is about 50% larger in diameter compared to Earth's moon. However, compared to Earth, Titan is significantly smaller, with a diameter approximately 50% smaller than Earth's. The gravity on Titan is much weaker than on Earth, with surface gravity about 14% that of Earth's.