All Questions
5
questions
5
votes
1
answer
578
views
Lagrangian form of Earth-Sun Kepler blows up NDSolve?
I've looked at this 1-D SE question. That question seems to have difficulties around diverging potential functions, and I don't have that. I've looked at this 2-D 3-body demonstration, but that starts ...
- 8,693
4
votes
1
answer
150
views
Impact Crater Sim. with added criteria
I have been trying with out success to edit this impact crater simulation
script into producing a variable which calculates crater density. In addition I have been trying to figure out how to ...
- 41
3
votes
1
answer
272
views
Computing planet conjunctions with 2D circular orbits still hard?
All methods I've seen for computing planetary/stellar conjuctions
(when two planets or a planet and a star appear close together in the
sky because their angular separation, as measured from Earth, ...
user1722
9
votes
3
answers
2k
views
RK4 Gravity Simulator
I have the following RK4 solver which splits the two 2nd order ODEs, used to calculate x and y positions under the influence of a gravitating body where $$x''(t)=\frac{G m x(t)}{(x(t)^2+y(t)^2)^{3/2}}$...
- 1,577
5
votes
1
answer
2k
views
p-iteration algorithm to solve Lambert's problem for interplanetary trajectories
I've been reading up on using the p-iteration method to solve Lambert's problem for choosing the correct interplanetary trajectory between two planets given the ...
- 1,577