This is a Work In Progress
This project aims at simulating (semi) realistically a star systems in 3D, and try out some things like: removing a planet or a sun, making binary system and watch how they evolve, ...
We start by creating a star system, which could be realistic or not. The current implementation uses Sol as an example.
The simulation of Sol is made by querying Nasa JPL Horizons API through astroquery to get the position and velocity of
the various objects in the system.
We then compute the position of each object through n-body simulation.
Install git-lfs
$ sudo apt install git-lfsClone the repo:
$ git clone https://github.com/entropyqueen/StarSystemSimulation.gitCreate python virtualenv and install dependencies:
$ python3 -m venv .env
$ . .env/bin/activate
$ pip install -r requirements.txtThere are three interfaces possible, one using matplotlib, the other using panda3d, and the latest which only display text informations
$ python3 main.py -d panda3d ./star_systems/sol.ymlpanda3d.mp4
The keymap can be changed in config.py. Here is the default keymap:
- move camera upward:
r - move camera downward:
f - move camera forward:
w - move camera left:
a - move camera backward:
s - move camera right:
d - rotate camera on Yaw axis:
mouse_x - rotate camera on pitch axis:
mouse_y - rotate camera right on roll axis:
e - rotate camera left on roll axis:
q - increase camera movement speed:
= - decrease camera movement speed:
- - Zoom in the simulation:
wheel_up - Zoom out of the simultaion:
wheel_down - select previous object, automatically rotate camera to look in object's direction:
arrow_left - select next object, automatically rotate camera to look in object's direction:
arrow_right - focus camera on selected object:
l - pause the simulation:
p - Switch between camera and select mode:
mouse2 - delete selected object from simulation:
delete - quit the simulator:
escape
Launch with
$ python3 main.py -d matplotlib ./star_systems/sol.yml`matplotlib.mp4
$ python3 ./main.py ./star_systems/sol.yml
===============================================================
Body: #0
Sun: (mass: 333030.0 earthMass)
coords: [ 1.30297237e-08 2.63768106e-09 -3.24993834e-10] AU
distance: 1.330e-08 AU
velocity: 1.330e-08 AU / d
accel: 1.330e-08 AU / d2
f: 5.300e+23 N
------------
Body: #1
Mercury: (mass: 0.055 earthMass)
coords: [0.02847986 0.30423792 0.02224997] AU
distance: 3.064e-01 AU
velocity: 3.420e-02 AU / d
accel: 3.130e-03 AU / d2
f: 2.060e+22 N
------------
Body: #2
Venus: (mass: 0.815 earthMass)
coords: [ 0.59716654 -0.41408386 -0.04014279] AU
distance: 7.278e-01 AU
velocity: 2.010e-02 AU / d
accel: 5.583e-04 AU / d2
f: 5.446e+22 N
------------
Body: #3
Earth: (mass: 1.0 earthMass)
coords: [-2.21619282e-01 9.57839114e-01 -4.98688282e-05] AU
distance: 9.831e-01 AU
velocity: 1.749e-02 AU / d
accel: 3.061e-04 AU / d2
f: 3.664e+22 N
------------
Body: #4
Mars: (mass: 0.107 earthMass)
coords: [0.02050098 1.56735053 0.03234596] AU
distance: 1.568e+00 AU
velocity: 1.354e-02 AU / d
accel: 1.206e-04 AU / d2
f: 1.544e+21 N
------------
Body: #5
Ceres: (mass: 0.00016 earthMass)
coords: [-2.36748925 0.82847643 0.46229517] AU
distance: 2.551e+00 AU
velocity: 1.118e-02 AU / d
accel: 4.551e-05 AU / d2
f: 8.715e+17 N
------------
Body: #6
Jupiter: (mass: 317.8 earthMass)
coords: [ 4.83311509 1.06843807 -0.11257051] AU
distance: 4.951e+00 AU
velocity: 7.919e-03 AU / d
accel: 1.207e-05 AU / d2
f: 4.592e+23 N
------------
Body: #7
Saturn: (mass: 95.16 earthMass)
coords: [ 8.15581203 -5.49125699 -0.22909235] AU
distance: 9.835e+00 AU
velocity: 5.412e-03 AU / d
accel: 3.065e-06 AU / d2
f: 3.490e+22 N
------------
Body: #8
Uranus: (mass: 14.54 earthMass)
coords: [13.36099443 14.43455643 -0.11957652] AU
distance: 1.967e+01 AU
velocity: 3.840e-03 AU / d
accel: 7.663e-07 AU / d2
f: 1.334e+21 N
------------
Body: #9
Neptune: (mass: 17.15 earthMass)
coords: [29.76172288 -2.93335823 -0.62548531] AU
distance: 2.991e+01 AU
velocity: 3.165e-03 AU / d
accel: 3.314e-07 AU / d2
f: 6.803e+20 N
------------
Body: #10
Pluto: (mass: 0.00218 earthMass)
coords: [ 16.18535004 -30.63884269 -1.40082392] AU
distance: 3.468e+01 AU
velocity: 3.098e-03 AU / d
accel: 2.465e-07 AU / d2
f: 6.431e+16 N
===============================================================
take a look at https://github.com/entropyqueen/StarSystemSimulation/blob/main/config.py