What would you weigh on HD 1397 b?

Q: What would you weigh on HD 1397 b?

HD 1397 b has no solid surface. At its cloud tops gravity pulls 1.00 times as hard as Earth's, so a 150 lb person would weigh about 150 lb there.

HD 1397 b’s surface gravity is 1.00× Earth’s, so you would weigh about the same as you weigh on Earth.

EXCLUDEDCALCULATEDHD 1397 b has no solid surface, so its gravity is the pull at the cloud tops, and it is excluded from surface-gravity rankings.

Your weight on Earth

At HD 1397 b’s cloud tops you would weighCALCULATED

150 lb

A 150 lb person, world by world
World	Gravity	You’d weigh
The Moon	0.17×	24.8 lb
Mars	0.38×	56.7 lb
HD 1397 b	1.00×	150 lb
Earth	1.00×	150 lb
Jupiter	2.53×	379 lb

For scale: among worlds with solid ground and a mass and size that agree, the gentlest gravity is Charon at 0.03×, and the most crushing is Kepler-123 b at 6.40×.

Weigh yourself on another world →

Surface gravity computed by gravityfinder from HD 1397 b’s mass and radius (gravity = mass ÷ radius², with Earth = 1). Measured mass.