Kerbin mass in different versions

[Instresu]

So I was doing the challenge in KSP 0.7.3 and reached ~3900 m/s horizontal velocity at about 85,000 meters. Now I'm wondering if I reached escape velocity or not.

To know that, you'll need to know the standard gravitational parameter and the radius for the current body.

For Kerbin, as 1.0.2, it's µ = 3.531×10¹² m³/s² and r = 6×10⁵ m (because Wiki says so).

Assuming this number, one can calculate the escape velocity: 2^0.5 × orbital velocity = (2µ/r)^0.5 = ( (2 × 3.531×10¹² m³/s²) / (6×10⁵ m + 8.5×10⁴ m) )^0.5 = 3211 m/s.

According to these assumptions, I did indeed reach escape velocity, but as anything else in the game; things can change and do so regularly. Do anyone know the numbers for 0.7.3, and for other versions as well? It'd be interesting to know!

Edited May 28, 2015 by Instresu
Opps.