Escape Velocity & Orbits
Click to place a body, drag to set initial velocity — watch orbits, escapes, and crashes
Presets
Circular Orbit
Elliptical Orbit
Hyperbolic Escape
Three-Body Figure-8
Binary Star
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Settings
G (gravity):
1.0
Trail length:
300
Click canvas to add body
0
Bodies
0
Total Energy
Vis-viva equation:
v² = GM(2/r − 1/a)
v
esc
= √(2GM/r)
Circular orbit:
e = 0
Elliptical:
0 < e < 1
Parabolic:
e = 1 (escape)
Hyperbolic:
e > 1
Drag after clicking to set velocity direction & speed.