Kepler 62f « The HabitableZone

Kepler 62f March 12, 2014 1:06 am FrankC

I know there is an equation to calculate the gravity of exo-planets and I think it has come up here. What would the gravity be based on the following stats.

I think it would only be a little over earth G but I have no idea how to calculate it.

Actually, they are just guessing wildly at the mass. Based on the stats below, I have seen speculation that it would have a gravity of 1.4 G. Since the radius is also 1.4 I wonder if it is a coincidence or would the radius always be an indicator, assuming the mass is earthlike?

Mass (m) 2.57[3] M⊕
Radius (r) 1.41 (± 0.07)[2] R⊕

The third way -- an extrasolar search primer. by ER 2014-03-13 16:52:54
g @ m/r**2 by ER 2014-03-12 03:44:57
- PS by ER 2014-03-12 10:33:31
  - If you Google the exo-planets... by FrankC 2014-03-12 21:37:19
    - What a planet is made of should not affect its mass, by ER 2014-03-13 06:04:38
      - So if a planet that was exactly the radius of Earth... by FrankC 2014-03-13 10:11:39
        
        Gravity would be affected. by ER 2014-03-13 12:38:50
  - PPS - " would the radius always be an indicator" by ER 2014-03-12 19:08:12

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