Fictional Planet has a gravity of approximately 0.68g

Geostationary orbit of said fictional planet is approximately 32,000 km above the surface according to online calculator.

Spacecraft capable of approximately 3g of constant acceleration (for purposes of this discussion, ignore normal requirements for fuel and/or reaction mass).

I presume that the spacecraft will also need time to DECCELERATE, but I have no idea how much affect 0.68g of planetary gravity will have on this.

Given this information, approximately how long after launch would it take for the spacecraft to reach a space station in geostationary orbit?


closed as unclear what you're asking by peterh says reinstate Monica, Brian Tompsett - 汤莱恩, Paul, Sean, Machavity Oct 7 at 13:01

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    $\begingroup$ Worldbuilding stack exchange might be better for purely hypothetical questions. $\endgroup$ – Organic Marble Oct 5 at 15:51
  • $\begingroup$ How exact a value are you looking for? Assuming no atmosphere to deal with and no time spent matching orbits, flight time's probably going to be under 40 minutes. $\endgroup$ – notovny Oct 5 at 17:33
  • $\begingroup$ What are the radius and rotational period of said planet? That will determine how fast you’re going upon launch, which will also determine how much more velocity you need to get to that orbit. Also, what is the orbital velocity at that altitude? Would you mind throwing in a J2 harmonic perturbation parameter to the description of your planet? $\endgroup$ – Paul Oct 5 at 21:23
  • $\begingroup$ @Paul that's a good point about the radius and period. I suppose one could assume that average density was the same as Earth's as an initial guess, then the planet's radius and period could be calculated (I think). But it might be better to find out what the OP typed into the on-line calculator, so... $\endgroup$ – uhoh Oct 6 at 0:05
  • $\begingroup$ @White76Knight it would be better if you shared all of the information. Why not add a screen shot of the on-line calculator's input or just include all of the input values that you supplied? I think the surface gravity and orbit size alone are not enough to answer the question. See comments above. $\endgroup$ – uhoh Oct 6 at 0:07